SIC 3790 — MISCELLANEOUS TRANSPORTATION EQUIPMENT

Frequently asked questions

What is NAICS 3790?

NAICS 3790 is the North American Industry Classification System code for MISCELLANEOUS TRANSPORTATION EQUIPMENT. It classifies this business activity for statistical, regulatory, and government procurement purposes. Federal agencies use NAICS codes to collect and publish data about the US economy, determine SBA size standards, and set aside contracts for small businesses.

What licenses and permits does a MISCELLANEOUS TRANSPORTATION EQUIPMENT need?

A MISCELLANEOUS TRANSPORTATION EQUIPMENT typically needs a local business license, a federal EIN from the IRS, and industry-specific permits depending on the sector. Check with your city or county clerk for a general business license, your state's professional or industry licensing board for any required occupational licenses, and your state's tax authority for a sales tax permit if you sell taxable goods or services.

How do I register a MISCELLANEOUS TRANSPORTATION EQUIPMENT business in the United States?

To register a MISCELLANEOUS TRANSPORTATION EQUIPMENT business, first choose your legal structure: sole proprietorship (simplest, uses SSN), LLC (personal liability protection, files with your Secretary of State), or corporation (Form 1120 or 1120-S). Register your business name (DBA) with your county if operating under a trade name. Obtain an EIN from the IRS at irs.gov/ein. Register with your state revenue department for any applicable taxes.

What tax forms does a MISCELLANEOUS TRANSPORTATION EQUIPMENT file with the IRS?

Tax forms depend on your entity type. A sole proprietor files Schedule C with Form 1040 and Schedule SE for self-employment tax (15.3%). An LLC taxed as a partnership files Form 1065 with Schedule K-1s. A C-Corporation files Form 1120 (21% flat rate). An S-Corporation files Form 1120-S. All businesses paying employees file Form 940 (FUTA) annually and Form 941 quarterly. Estimated tax payments are made via Form 1040-ES four times per year.

Is MISCELLANEOUS TRANSPORTATION EQUIPMENT the right NAICS code for my business?

Your NAICS code should reflect your primary business activity — the one generating the most revenue or value. If MISCELLANEOUS TRANSPORTATION EQUIPMENT describes your main line of business, NAICS 3790 is likely correct. If you have multiple distinct activities, you may need separate codes for statistical reporting. For federal contracting, your SAM.gov registration should use the code that best matches the work you perform. Review the official NAICS 3790 description and exclusions to confirm it fits your operations.

Does a MISCELLANEOUS TRANSPORTATION EQUIPMENT need to file IFTA quarterly fuel tax returns?

Yes, if you operate qualified motor vehicles (two axles over 26,000 lbs or three+ axles regardless of weight) across state lines, you must file IFTA (International Fuel Tax Agreement) quarterly returns. IFTA consolidates fuel tax reporting across 48 contiguous states and 10 Canadian provinces into one return. Base jurisdiction is typically your state of registration. Keep detailed mileage and fuel purchase records by jurisdiction.

What is the UCR (Unified Carrier Registration) program for a MISCELLANEOUS TRANSPORTATION EQUIPMENT?

The UCR program requires all interstate motor carriers, freight forwarders, and brokers to pay an annual fee based on fleet size. Fees range from $41 for the smallest carriers to over $800 for large fleets. Registration opens October 1 each year and must be completed by December 31. Operating without UCR registration subjects you to roadside enforcement penalties during inspections.

Does a MISCELLANEOUS TRANSPORTATION EQUIPMENT need a CDL (Commercial Driver's License)?

You need a CDL to operate vehicles with a GVWR of 26,001 lbs or more, vehicles designed to transport 16+ passengers (including driver), or any vehicle transporting hazardous materials requiring placards. CDLs have three classes (A, B, C) and various endorsements (H for hazmat, P for passenger, S for school bus, N for tankers). The FMCSA Drug & Alcohol Clearinghouse requires annual queries for CDL holders.

What are the hours-of-service rules for a MISCELLANEOUS TRANSPORTATION EQUIPMENT?

FMCSA hours-of-service rules limit property-carrying drivers to 11 hours driving after 10 consecutive hours off, within a 14-hour on-duty window, with a maximum of 60 hours on-duty in 7 days or 70 hours in 8 days. Passenger carriers have different limits (10 hours driving, 15-hour window). All CDL drivers must use ELDs (electronic logging devices) unless operating under a short-haul or pre-2000 vehicle exemption.