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SIC 1987 Legacy USA
Code
3613

SIC 3613 — SWITCHGEAR & SWITCHBOARD APPARATUS

Office of Manufacturing

Convert SIC 3613 to NAICS 2022

See the full crosswalk with NAICS matches, SBA size standards, and conversion guidance.

Frequently asked questions

What is NAICS 3613?
NAICS 3613 is the North American Industry Classification System code for SWITCHGEAR & SWITCHBOARD APPARATUS. 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 SWITCHGEAR & SWITCHBOARD APPARATUS need?
A SWITCHGEAR & SWITCHBOARD APPARATUS 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 SWITCHGEAR & SWITCHBOARD APPARATUS business in the United States?
To register a SWITCHGEAR & SWITCHBOARD APPARATUS 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 SWITCHGEAR & SWITCHBOARD APPARATUS 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 SWITCHGEAR & SWITCHBOARD APPARATUS 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 SWITCHGEAR & SWITCHBOARD APPARATUS describes your main line of business, NAICS 3613 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 3613 description and exclusions to confirm it fits your operations.
What is an EULA and does a SWITCHGEAR & SWITCHBOARD APPARATUS need one?
An End User License Agreement (EULA) grants users a limited license to use your software while retaining your IP rights. It differs from Terms of Service in that it focuses on license scope, restrictions (no reverse engineering, no reselling), ownership, termination conditions, and warranty disclaimers. EULAs are essential for downloadable software, mobile apps, and desktop applications. Open-source software uses specific license types (MIT, GPL, Apache 2.0) instead.
Does a SWITCHGEAR & SWITCHBOARD APPARATUS need to be PCI DSS compliant to process payments?
If your business stores, processes, or transmits credit card data, you must comply with PCI DSS (Payment Card Industry Data Security Standard). Using a hosted payment gateway like Stripe or Braintree (where card data never touches your server) significantly reduces your compliance burden — you typically just need to complete a SAQ-A self-assessment. Direct card processing requires full SAQ-D compliance, penetration testing, and quarterly vulnerability scans. Non-compliance can result in fines and losing the ability to process cards.
What professional licenses does a SWITCHGEAR & SWITCHBOARD APPARATUS need for IT/cybersecurity work?
Most IT and digital services do not require government licenses, but certain activities trigger regulatory requirements. Cybersecurity firms performing penetration testing should have a detailed Statement of Work, NDA, and authorization letter. If you handle protected health information (PHI) for healthcare clients, you must sign a Business Associate Agreement (BAA) under HIPAA. If you provide services to federal agencies, you may need FedRAMP authorization or CMMC (Cybersecurity Maturity Model Certification) compliance.
Does a SWITCHGEAR & SWITCHBOARD APPARATUS need a privacy policy on their website?
Yes. If your website or app collects any personal information (name, email, IP address, payment data), you need a privacy policy. The California Consumer Privacy Act (CCPA/CPRA) requires businesses over $25M revenue, handling 100K+ consumer records, or deriving 50%+ revenue from data sales to provide specific disclosures and opt-out mechanisms. GDPR applies if you target EU users. FTC Act Section 5 prohibits unfair or deceptive practices regarding privacy promises. All 50 states have data breach notification laws.

How to register a switchgear & switchboard apparatus business in the US

1
Verify classification

Confirm that SWITCHGEAR & SWITCHBOARD APPARATUS matches your digital services or technology activity.

2
Register for an EIN (Form SS-4)

Required for most tech business entities.

IRS EIN application
3
Implement privacy compliance

Review CCPA (California), state AG privacy laws, and FTC data security guidance applicable to your user data handling.

4
Register for sales tax nexus states

Remote sellers with economic nexus must register in states where sales exceed the threshold (typically $100K or 200 transactions).

US Tax Forms & Registration

Form NameWho Files ItFrequency
Profit or Loss from Business
U.S. Return of Partnership Income
U.S. Corporation Income Tax Return
U.S. Income Tax Return for an S Corporation
Self-Employment Tax
Estimated Tax for Individuals
Application for Employer Identification Number (EIN)
Entity Classification Election
Nonemployee Compensation
Employer's Annual Federal Unemployment (FUTA) Tax Return
Employer's Quarterly Federal Tax Return
Request for Taxpayer Identification Number and Certification

Entity Comparison

$

No federal sales tax in the United States. Sales tax is imposed at state and local levels, ranging from 0% to 10.25%. Economic nexus thresholds (following South Dakota v. Wayfair) require out-of-state sellers to collect sales tax once they exceed a state's revenue or transaction threshold, typically $100,000 in sales or 200 transactions per year.

No state income tax: Alaska (AK), Florida (FL), Nevada (NV), New Hampshire (NH), South Dakota (SD), Tennessee (TN), Texas (TX), Washington (WA), Wyoming (WY)

Who uses this code?

Cybersecurity Consultant

Conducts penetration testing, compliance audits, and security assessments for mid-market companies.

Licenses
  • Business license
  • CISSP/CISM certification
  • E&O / cyber liability insurance
Tax Forms
  • Schedule C or 1120-S
  • Schedule SE
  • Form 1040-ES
SaaS Startup Founder

Builds and markets a subscription software platform serving a specific business or consumer niche.

Licenses
  • Business license
  • Terms of service / privacy policy
  • SOC 2 (if enterprise B2B)
Tax Forms
  • Form 1120 or 1120-S
  • Form 3921 (ISO grants)
  • State franchise tax
Data Analytics Consultant

Helps companies build dashboards, analyze customer data, and derive actionable business intelligence.

Licenses
  • Business license
Tax Forms
  • Schedule C (Form 1040)
  • Schedule SE (Form 1040)
E-commerce Store Owner

Sells physical or digital products through Shopify, Amazon FBA, Etsy, or a proprietary online store.

Licenses
  • Sales tax permit (per economic nexus)
  • Business license
  • Resale certificate
Tax Forms
  • Schedule C (Form 1040)
  • Schedule SE (Form 1040)
  • State sales tax return

Who is this code for

Occupations and roles commonly associated with this classification

Also relevant for

Source: O*NET / BLS occupation data · O*NET 30.2 / BLS SOC

Official data

Feature Description
Official name Standard Industrial Classification (SIC) 1987
Maintained by Referenced by the U.S. Securities and Exchange Commission for filing classification
Purpose Legacy industry taxonomy used before NAICS became the current standard
Primary use SEC/EDGAR filings, older business records, historical market databases
SEC office Office of Manufacturing

When do you need SIC 3613?

1 Use SIC 3613 when a company filing, EDGAR record, or historical business source still references this legacy code.
2 Use it when translating an old SIC-based company list into current NAICS 2022 for contracting or SBA work.
3 Use it when reviewing SEC industry buckets that still depend on SIC rather than NAICS.
4 Use it for historical comparison only, not as the primary code for current SBA or federal procurement workflows.