How to start a cat converter desk in Hawaii the real way

Last updated 2026-08-21

What is a cat converter desk in Hawaii, really?

A cat converter desk in Hawaii is a buying point for used catalytic converters. You pay a seller, you identify the piece, you log it, and you sell or ship the metal. That is the whole job.

It is not a swap meet stool and a lockbox. Under Hawaii law this work sits on top of scrap dealing and, in ordinary reading, used motor vehicle parts. Both are licensed lines. The island market is small. Officers and county clerks already know the yards that do this right, and the ones that cut corners.

Came here for the national myth about "just posting a buy number"? Stop reading forums. The real path is county paper, a tax account, a place zoned for industrial buying, and a record you can hand a detective without sweating. Metal prices move. Freight from Honolulu, Hilo, Kahului, or Lihue punishes sloppy weight. Paper is what keeps you in business the day a converter turns out hot.

Treat this as a shop, even if the shop is one bay and one scale. A pretty storefront wastes money here. Sellers with a legal converter will find an industrial address. Sellers who flinch at a camera and a written statement are not your customers.

Hawaii is not the mainland. If you are stacking paper across states later, how to start a cat converter desk in California and how to start a cat converter desk in Arizona run on different statutes. Read Hawaii first.

Do you need a license for a cat converter desk in Hawaii?

Yes. A cat converter desk in Hawaii needs at least a county scrap dealer license, and you should ask the same county whether a used motor vehicle parts license also applies. You also need a General Excise Tax account. Operating as an unlicensed buyer is how desks get shut down.

Start with scrap. HRS 445-232 is blunt, and it is per place of business. The statute sends you to the county treasurer, not a single Honolulu "cat board." The opening duty reads: "Any person desiring to engage in the business as a scrap dealer shall, for each place of business, apply to the treasurer of the county." ^[3] A second island location is a second conversation.

Then ask about used parts. HRS 289-2 makes it unlawful to engage in the business of used motor vehicle parts and accessories without a license under that chapter. ^[1] A catalytic converter that came off a car is a used motor vehicle part in plain English. I will not pretend every county clerk reads a converter-only desk the same way. Bring the statute. Ask whether they want a chapter 289 license, a chapter 445 license, or both. Get the answer in writing if you can.

Definitions matter when you argue with a clerk. HRS 445-231 is the scrap definitions section. HRS 289-1 is the used parts definitions section. Read both before the appointment. ^[2][5]

Do not confuse this with a motor vehicle dealer license. Selling whole cars is a different chapter. You are buying spent parts and scrap. Stay in that lane unless you actually intend to retail vehicles.

Sole prop, LLC, or corporation, the license question does not vanish. The county still wants a named applicant and a place of business. Confirm current forms and fees with the treasurer in the City and County of Honolulu, Hawaii County, Maui County, or Kauai County, depending on where the desk actually sits.

Which Hawaii licenses actually apply to buying catalytic converters?

The licenses that apply are the county scrap dealer license under HRS chapter 445, often a used motor vehicle parts license under HRS chapter 289, a GET license from the Department of Taxation, and whatever entity or trade name filing DCCA requires. Zoning approval is separate, and it can kill a plan faster than any license fee.

Use this as a working map, then confirm each cell. County staff change forms. I am not going to invent a current dollar figure or a promised processing window.

Paper	Who issues it	What you are asking	Confirm with
County scrap dealer license	County treasurer	Legal right to buy scrap at that site	Treasurer for that county
Used motor vehicle parts license	County under HRS 289	Whether converter-only buying is "used parts"	Same county licensing desk
GET license	Department of Taxation	Privilege tax account for Hawaii gross receipts	Hawaii Tax / HITAX
Entity or trade name	DCCA Business Registration	Legal name on the door and the bank	DCCA BREG

The scrap license is the one I would not open without. Chapter 445 is built for people who buy scrap from the public. Catalytic converters are scrap once they are cut off and sold for metal. The used parts chapter is the one people skip, then regret, because a converter is also a part. Ask. Do not guess.

State business registration does not replace those county licenses. DCCA can file your LLC. That filing does not let you buy converters. The LLC page is only the entity step. ^[9]

Open a second desk on another island, and you restart the county questions. Hawaii has four counties. One license packet is not a statewide passport. Mainland readers who already compared cat converter desk license in California or cat converter desk license in Arizona should not import those checklists blindly.

How much does a cat converter desk cost in Hawaii?

Nobody publishes a clean statewide startup number for a Hawaii cat converter desk. The real total is county license fees (confirm with the treasurer), DCCA filing fees (confirm on the current BREG schedule), a GET account, a zoned bay, a scale, insurance, and freight. Rent and ocean shipping usually dwarf the license line.

Budget the paper as a small, annoying, mandatory stack. Then budget the place and the freight as the actual business. Industrial bays near Honolulu Harbor, Campbell Industrial, Kona, Hilo, Kahului, and Lihue do not share one rent. Call three landlords. Ignore national "startup cost" blogs that never name a Hawaii county.

Tax is not a license fee, but it is cash out the door. HRS 237-13 levies the general excise tax on business gross proceeds at rates that include one-half of one percent on wholesaling and four percent on retailing and many services. ^[6] Counties may add a surcharge under HRS 237-8.6. The Department of Taxation posts which counties impose it and at what rate. Confirm the live surcharge before you price a load. ^[7][8]

Whether your outbound metal sale is wholesale or something else is a classification question. I am not your tax counsel. A Hawaii tax pro who has actually filed GET on scrap is worth more than a new XRF gun in month one.

Equipment I would buy first: a verified scale, good lights, a camera that actually stores photos, lockable bins, and a pallet jack. Equipment I would not buy first: a showroom counter, a neon cat, or lab-grade analyzers you cannot calibrate. If volume is still a hope, pay a downstream processor who already owns the gun.

Insurance is a real line. General liability, property, and inland marine for metal in transit are the boring policies you actually need. Put anyone on payroll and workers' compensation stops being optional philosophy. It is HRS chapter 386. ^[12] Get quotes from a Hawaii broker. Do not copy a mainland premium you saw in a forum.

Entity cost is the number people over-focus on. DCCA publishes current Articles of Organization and trade name fees on its LLC registration page. Read that page the week you file. ^[9] Then stop obsessing. The bay deposit will be larger.

How long does a cat converter desk take in Hawaii?

There is no honest statewide clock. Entity filing can be quick. County scrap and used-parts licenses follow that county's intake, inspections, and meeting calendar. Zoning can take longer than every license combined. Confirm current processing with the county treasurer and planning desk. No article can promise you an approval date.

Sequence beats speed. File the entity and the EIN, apply for GET, lock a zoned site with written landlord consent, then walk into the county treasurer with the address that will actually appear on the license. Apply against a P.O. box or a house you have not cleared with zoning, and you redo the packet.

DCCA Business Registration is usually the fastest adult in the room if your documents are clean. ^[9] IRS EIN issuance is often same session online if the legal name matches. ^[10] GET setup runs through the Department of Taxation. Timing there is a Department fact, not a blog fact. ^[14]

The slow parts are local. Fire inspection. Planning sign-off if your site stored cardboard last month and now you want public sellers rolling in with converters. Neighbor complaints. A special management area problem if someone picked a dumb coastal lot. I have no statewide median because the state does not publish one for "cat desks."

A consultant who sells you a guaranteed three-week open date is selling a lie. Hawaii counties do not work for that person. Build a calendar with buffers. Do not lease a full year of empty yard on the hope that paper lands in ten days.

People coming from how to start a cat converter desk in Alaska or how to start a cat converter desk in Alabama sometimes expect one state portal. Hawaii runs this through counties. Plan travel between islands if your paperwork is not on Oahu.

What records does Hawaii make you keep on every converter?

Hawaii scrap law makes you take a signed seller statement on purchases of scrap in the State. HRS 445-233 is titled "Statement required," and the core duty is a signed writing that the seller has the lawful right to sell the scrap. Keep that statement. Keep it where you can find it in five minutes.

The statute's demand, in the words the legislature actually used, is that a scrap dealer "shall obtain a written statement signed by the seller or the seller's agent certifying that the seller or the seller's agent has the lawful right to sell and dispose of such scrap." ^[4] That is not a vibe. That is the form.

Go past the minimum on converters, even when the statute is quieter than you want. Photograph the seller ID. Photograph the converter, including any stamp, serial, or partial VIN. Note the time, the payment method, and the vehicle if they drove up with a saw still in the bed. Theft detectives ask for those things whether or not a clerk printed them on the license handout.

Read the current full text of HRS 445-233 and any later catalytic converter amendment before you write your intake sheet. Legislatures have been busy on this metal. I am not going to invent a hold period or a cash ban that the compilation on your filing week may have changed. Confirm hold times, acceptable ID, and payment limits with the county treasurer and the current statute PDF.

If chapter 289 also applies to you, read its record section the same day. Used parts dealers keep purchase records for a reason. Align one log so you are not running two contradictory sheets.

A binder a night manager actually fills in beats a beautiful spreadsheet nobody opens. Train whoever stands at the scale. The statement is worthless if the signature is "Mike" and the address line is blank.

Do you need a GET license and a registered entity first?

Yes on the GET account if you are doing business in Hawaii. Entity registration is how you keep your name, your bank, and your license applications from fighting each other. Do both before you advertise a buy price.

The general excise tax is a privilege tax on gross proceeds of business in the State. HRS 237-13 says there "is hereby levied and shall be assessed and collected annually privilege taxes against persons on account of their business and other activities in the State." ^[6] The Department of Taxation's GET page is the practical explanation of rates, exemptions you should not invent, and how returns work. ^[14]

County surcharge is extra. HRS 237-8.6 is the surcharge statute. The Department lists which counties currently impose it. ^[7][8] Your advertised buy price should assume you will owe tax on taxable gross receipts. Do not copy a mainland "we pay tax only on profit" story. GET is not that tax.

For the legal person, DCCA Business Registration is the counter. An LLC is a common choice because the filing is familiar to banks. It is not magic liability armor if you personally buy stolen metal. Confirm the current Articles of Organization fee and name rules on DCCA's LLC page the week you file. ^[9]

Get an EIN from IRS if you are not operating under a Social Security number the bank will accept. The IRS online EIN application is the official route. ^[10]

Sole props still need GET. Trade names still need to match the scrap license. I would not open a seller-facing desk under three different names. Clerks hate that. Police hate it more.

What about zoning, county rules, and a physical yard?

You need a real, zoned place of business. HRS 445-232 licenses scrap dealing per place of business. A kitchen table in a residential walk-up is not a plan. Confirm zoning with the planning department in the same county that will print the scrap license.

Public sellers create traffic, noise, and the occasional argument at the gate. That is why residential neighborhoods fight this use. Look at existing industrial parks, wrecking yards that will sublease a bay, or a warehouse already receiving metal. A new use in a cute mixed-use building is how you fund someone else's lawyer.

Ask the landlord, in writing, whether scrap receiving and short-term storage of used catalytic converters is allowed under the lease. Insurance riders matter here. So does the fire inspector. Do not hide the commodity. Converters are bulky, dirty, and interesting to thieves. Your landlord will learn anyway.

Each county has its own planning code. Honolulu is not Maui. Hawaii County is not Kauai. Want a neighbor-island desk? Fly there and walk the site. Photos lie about truck access.

Parking for a pickup with a saw and a milk crate is part of site design. So is a camera that sees faces at noon glare. So is a lock that is not a joke. None of that is a state form. All of it decides whether you still have inventory on Monday.

Home occupations will not save you. If a clerk says "maybe, if you only buy online," get that in writing. I would not bet a criminal statute on a maybe.

What insurance and worker rules hit a Hawaii desk?

If you have employees, Hawaii workers' compensation and occupational safety rules apply. If you have no employees, you still want liability and cargo cover because converters get stolen twice, once from cars and once from sloppy yards. Confirm coverages with a Hawaii broker. Confirm worker status with DLIR before you are tempted to call everyone a contractor.

HRS 386-3 is the injuries-covered section of the workers' compensation law. People you put in service under a contract of hire are the point of that chapter. ^[12] I am not going to recast your cousin with a cutoff wheel as a hobbyist. If they work for you, budget the policy and the reporting.

Safety is not a poster. HRS 396-6 puts a duty on employers to furnish a place of employment free of recognized hazards. ^[13] Cut converters have sharp necks. Forks drop pallets. Residual soot is nasty in a closed container. Gloves, eye protection, and a rule about who may run a saw do more than any slogan.

Federal hazardous waste classification is the separate scare story people tell. Intact catalytic converters managed as scrap metal for reclamation often fall under the scrap metal provisions in 40 CFR 261.6. The rule states that certain recyclable materials, including qualifying scrap metal, "are not subject to regulation under parts 262 through 268, 270 or 124 of this chapter." ^[11] That is not a free pass to dump fluids, burn insulation, or store leaking drums. Start cutting, leaching, or mixing wastes, and you stop and get a Hawaii hazardous waste determination. I would keep converters intact and sell them to a processor who already lives in that world.

Skip bargain internet "business insurance" that excludes scrap and theft. Tell the broker the commodity.

How do you stay on the right side of theft and VIN rules?

You stay on the right side by refusing deals that feel rushed, by logging seller identity and any VIN or serial that exists, and by cooperating when police call. Buying a stolen converter is how a desk becomes a case file. Hawaii theft statutes still apply even when the special converter language is what people argue about online.

I would not buy from a seller who will not show ID. I would not buy a saw-cut pair out of a garbage bag at dusk behind a supermarket. I would not pay extra to skip the statement. Those are not tough-guy rules. They are how you still hold a license next year.

If a converter still carries a partial VIN, log it. NHTSA's VIN rules exist so vehicles have a unique identifier. Your log is how that identifier stays attached to a sale after the can leaves the car. When a detective brings a list of stolen VINs, you want a search, not a shrug.

Want a single paper pack for VIN and seller logs? CatConPath sells a $179 one-time VIN-Log + Theft-Compliance Kit. That is optional paper. It is not a Hawaii license and it does not replace HRS 445-233.

Train staff to halt a buy and call the non-emergency line when the story and the metal do not match. A $180 purchase is not worth a stolen-property problem. Downstream refiners also reject dirty loads. Your standing with one Honolulu or Hilo processor is worth more than a weekend of yes.

Compare attitudes, not forms, with how to start a cat converter desk in Colorado if you like. The metal is global. The intake sheet is local.

What should you skip in year one?

Skip the showroom, the imported POS cathedral, and the plan to serve every island from one unlicensed garage. Skip paying cash into a dark truck. Skip promising sellers "no questions." Skip buying an analyzer before you have a year of tickets.

Skip multi-county expansion until one site is boringly compliant. Freight between islands is a business on its own. Licensing between islands is four conversations. People underestimate both.

Skip naming the company something that sounds like a cop magnet and then advertising "we pay top dollar, no ID." That ad is an exhibit.

Spend money on the scale, the camera, the locks, a lawyer who has read chapters 445 and 289, and a tax person who files GET. That list is dull. Dull is the point.

Want a mainland contrast after the Hawaii packet is in? How to start a cat converter desk in Arkansas is another state guide, not a shortcut around your county treasurer.

What does first-year operations actually look like?

First year looks like a quiet industrial bay, a short buy list, a thick intake binder, and more time on freight quotes than on social media. You spend mornings on sellers and afternoons on whether a load is even worth the barge or the plane.

Price off a processor you trust, not off a screenshot from another time zone. Hawaii landed cost includes ocean or air, security, and time. A "good" mainland number can be a loss after Honolulu terminal fees. Confirm current freight with carriers. I will not invent a per-pound ship rate.

Staff if you must, but train them on the statement before they touch a wallet. One sloppy week of unsigned tickets is a year of pain. Audit your own logs monthly. Pretend a detective is coming Friday.

Renewals, GET filings, and county fee cycles sneak up. Put them on a calendar the day the license lands. Confirm each deadline with the same office that issued the paper. Variable facts change. This site is a reference, not a substitute for the board in front of you.

Ready to organize desk paperwork? Start at /start. CatConPath is an independent publisher, not a law firm and not a service company. The statutes and the county treasurer still run the show.

Frequently asked questions

Do you need a license for cat converter desk in hawaii?

Yes. Plan on a county scrap dealer license under HRS 445-232 for each place of business, and ask that same county whether a used motor vehicle parts license under HRS chapter 289 also applies. You also need a GET account with the Department of Taxation. Confirm forms and current fees with the treasurer in the county where the desk sits. No license, no desk.

How much does cat converter desk cost in hawaii?

There is no official statewide startup total. Count county license fees (confirm with the treasurer), DCCA entity fees (confirm on the current BREG schedule), GET filings, a zoned industrial bay, a scale, insurance, and freight. Rent and shipping usually dwarf the license line. Ignore national round numbers that never name a Hawaii county.

How long does cat converter desk take in hawaii?

It depends on the county, zoning, and whether your site is already industrial. Entity and EIN steps can be fast. Scrap and used-parts licenses follow local intake and inspections. Nobody has a clean statewide median for this use. Confirm current processing with the county treasurer and planning desk. Do not lease a long empty term on a promised week count.

Can I buy catalytic converters from the public for cash in Hawaii?

Do not assume cash is legal just because someone paid that way last year. Read the current text of HRS 445-233 and any later converter amendments, then confirm payment rules with the county treasurer. I will not invent a cash ban or bless a cash habit. If the statute or the county limits payment methods, follow that rule on day one.

Is a home garage legal for a Hawaii cat converter desk?

Almost certainly not as a public buying desk. Scrap licenses are issued per place of business, and residential zoning rarely allows scrap receiving and seller traffic. Ask planning and the treasurer before you test the neighbors. Get any "maybe" in writing. A cheap industrial bay is the adult version of this idea.

Do I need a GET license if I only buy in Hawaii and ship metal off island?

If you are doing business in Hawaii, plan on a GET account. Shipping the metal out of state does not erase the privilege tax question on Hawaii gross proceeds. Classification of wholesale versus other rates is fact specific. Confirm with the Department of Taxation or a Hawaii tax pro before you price loads. HRS 237-13 is the rate statute.

What county issues the scrap dealer license?

The treasurer of the county where that place of business sits. HRS 445-232 sends the application there, and it is per location. Honolulu, Hawaii County, Maui County, and Kauai County are separate conversations. A second island desk is a second license packet. Confirm hours and forms with that treasurer, not with a mainland checklist.

Are catalytic converters used motor vehicle parts under HRS 289?

A converter that came off a motor vehicle is a used motor vehicle part in ordinary English, and HRS 289-2 requires a license to engage in that business. Counties may still treat a converter-only desk as scrap, used parts, or both. Ask the issuing office while you apply under chapter 445. Bring HRS 289-1 and 289-2 with you.

Do I need workers' compensation as a solo operator with no employees?

If you truly have no employees, chapter 386 may not be the first policy you buy, but liability and cargo still matter. The moment you put someone in service under a contract of hire, workers' compensation is a live issue under HRS 386-3. Confirm worker status with DLIR instead of calling everyone a contractor. Get Hawaii quotes, not forum premiums.

Can I operate in all four counties on one license?

No. Scrap dealing is licensed per place of business through the county treasurer. Used-parts licensing is also county paper under chapter 289. GET is statewide, but it does not replace local scrap authority. If you want desks on two islands, run two county packets and two zoning checks. Confirm that reading with each treasurer.

What happens if I buy a stolen catalytic converter?

You can lose the metal, face a stolen-property investigation, and put the scrap license at risk. The seller statement under HRS 445-233 is your first defense only if you actually completed it and the story holds. Photograph ID and the piece. Stop buys that feel rushed. Call police when the metal and the story do not match. Cheap inventory is expensive.

Do I need an EPA ID number to buy intact catalytic converters?

Not automatically, if you keep units intact and handle them as scrap metal for reclamation. 40 CFR 261.6 describes scrap metal recyclable materials that are not subject to the usual hazardous waste permitting parts. That protection shrinks if you treat, leach, or mix wastes. When in doubt, get a hazardous waste determination before you cut or chemically process anything.

Should I form an LLC or stay a sole proprietorship?

An LLC is a common, bank-friendly wrapper and DCCA publishes the current Articles of Organization process on its LLC page. It does not replace scrap or used-parts licenses and it will not wash a bad buy. Sole props still need GET and county licenses. Pick the form your bank and your lawyer can live with, then print matching names on every application.

Where do I confirm current Hawaii fees and wait times?

Confirm scrap and used-parts fees and timing with the county treasurer and any inspection unit they name. Confirm entity fees on the DCCA BREG LLC page the week you file. Confirm GET setup with the Department of Taxation. Do not trust a copied dollar figure or a promised number of days from an article, including this one. Boards change forms.

Sources

1. Hawaii Revised Statutes §289-2 License required: Hawaii requires a license to engage in the business of used motor vehicle parts and accessories.
2. Hawaii Revised Statutes §289-1 Definitions: Chapter 289 definitions control who is a used motor vehicle parts and accessories dealer.
3. Hawaii Revised Statutes §445-232 License: A person who wants to engage in business as a scrap dealer must apply to the county treasurer for each place of business.
4. Hawaii Revised Statutes §445-233 Statement required: Scrap dealers purchasing scrap in Hawaii must obtain a signed written seller statement of lawful right to sell.
5. Hawaii Revised Statutes §445-231 Definitions: Chapter 445 definitions set who is a scrap dealer and what counts as scrap.
6. Hawaii Revised Statutes §237-13 Imposition of tax: Hawaii levies general excise privilege taxes on business gross proceeds, including one-half of one percent wholesaling and four percent retailing rates.
7. Hawaii Revised Statutes §237-8.6 County surcharge on state tax: Hawaii law authorizes a county surcharge on the state general excise tax.
8. Hawaii Department of Taxation County Surcharge: The Department of Taxation publishes which counties impose the GET surcharge and the current surcharge rate.
9. Hawaii DCCA Business Registration Limited Liability Company: DCCA Business Registration is the filing office for Hawaii LLC Articles of Organization and posts current LLC filing rules.
10. IRS Apply for an Employer Identification Number (EIN) Online: The IRS issues EINs through its official online application for businesses that need a federal tax ID.
11. 40 CFR 261.6 Requirements for recyclable materials: Qualifying scrap metal recyclable materials are not subject to regulation under 40 CFR parts 262 through 268, 270, or 124.
12. Hawaii Revised Statutes §386-3 Injuries covered: Hawaii workers’ compensation covers injuries to persons in the service of another under a contract of hire.
13. Hawaii Revised Statutes §396-6 Employer responsibility; safe place of employment: Hawaii employers must furnish a place of employment free of recognized hazards.
14. Hawaii Department of Taxation General Excise Tax: The Department of Taxation explains GET rates, the privilege-tax structure, and how Hawaii businesses obtain and use a GET license.