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Sources & Legal References
Our templates are drafted from official US government publications, federal statutes and regulations, and widely adopted model laws. Below is every primary source we rely on, with a note on what it governs in each document — so you can verify our work yourself.
State and local laws (deposit limits, notice periods, notarization, DMV forms) vary and change. Always confirm requirements with your state agency. US Form Kit is not a law firm and is not affiliated with any government agency.
Form W-9 (Request for Taxpayer Identification Number)
W-9 Generator →- Internal Revenue ServiceAbout Form W-9, Request for Taxpayer Identification Number and CertificationOfficial form, current revision and line-by-line instructions our substitute W-9 mirrors.www.irs.gov/forms-pubs/about-form-w-9
- Internal Revenue ServiceInstructions for the Requester of Form W-9IRS rules allowing requesters to accept substitute forms with the required certification.www.irs.gov/instructions/iw9
- Internal Revenue ServiceBackup WithholdingWhen the 24% backup withholding applies and why certification item 2 may need to be crossed out.www.irs.gov/businesses/small-businesses-self-employed/backup-withholding
- Internal Revenue ServiceEmployer Identification Number (EIN)How sole proprietors and entities obtain an EIN to use instead of an SSN.www.irs.gov/businesses/small-businesses-self-employed/employer-id-numbers
- Legal Information Institute, Cornell Law School26 U.S. Code § 3406 — Backup withholdingThe federal statute behind TIN certification and backup withholding.www.law.cornell.edu/uscode/text/26/3406
Bill of Sale & Vehicle Transfers
Bill of Sale Generator →- Electronic Code of Federal Regulations (NHTSA)49 CFR Part 580 — Odometer Disclosure RequirementsRequired wording and the three mileage certifications in our odometer disclosure section.www.ecfr.gov/current/title-49/subtitle-B/chapter-V/part-580
- Legal Information Institute, Cornell Law School49 U.S. Code § 32705 — Disclosure requirements on transfer of motor vehiclesThe federal statute requiring a written mileage statement when ownership transfers.www.law.cornell.edu/uscode/text/49/32705
- Federal Trade CommissionUsed Car RuleBackground on "as is" sales and warranty disclosures in the used-vehicle market.www.ftc.gov/legal-library/browse/rules/used-car-rule
- USA.govMotor vehicle services — find your state DMVDirectory of state motor vehicle agencies for title, registration and notarization rules.www.usa.gov/motor-vehicle-services
Residential Lease Agreement
Lease Agreement Generator →- U.S. Environmental Protection AgencyReal Estate Disclosures About Potential Lead HazardsLessor obligations for housing built before 1978 and the required pamphlet.www.epa.gov/lead/real-estate-disclosure
- Electronic Code of Federal Regulations40 CFR Part 745, Subpart F — Disclosure of Known Lead-Based Paint HazardsLead warning statement and disclosure elements included in our lease.www.ecfr.gov/current/title-40/chapter-I/subchapter-R/part-745/subpart-F
- Legal Information Institute, Cornell Law School42 U.S. Code § 4852d — Disclosure of information concerning lead upon transferThe statute that created the federal lead disclosure requirement.www.law.cornell.edu/uscode/text/42/4852d
- U.S. Department of Justice, Civil Rights DivisionFair Housing ActFederal protected classes reflected in our fair housing clause.www.justice.gov/crt/fair-housing-act-1
- Uniform Law CommissionResidential Landlord and Tenant ActModel act many states drew on for deposits, entry, habitability and remedies.www.uniformlaws.org/