Sources

Every Primary Source We Cite

This page collects the deep links behind our guides and quote methodology. If we quote a number, this is where the number came from.

Federal safety and health regulation

OSHA, 29 CFR 1910 (Occupational Safety and Health Standards, General Industry). ecfr.gov title 29 part 1910. Baseline general-industry safety rules that apply to a pressure washing crew.
OSHA, 29 CFR 1910.132 (Personal Protective Equipment, general requirements). ecfr.gov 1910.132. The employer's duty to assess hazards and provide PPE, cited throughout our SH safety guide.
OSHA, 29 CFR 1910.1200 (Hazard Communication Standard). ecfr.gov 1910.1200. Requires SDS access, chemical labels, and worker training.
OSHA, 29 CFR 1926 (Safety and Health Regulations for Construction). ecfr.gov title 29 part 1926. Includes fall protection rules that apply once a pressure washing crew accesses a roof or works above six feet.
OSHA, Personal Protective Equipment overview page. osha.gov/personal-protective-equipment.
CDC NIOSH, Sodium Hypochlorite pocket guide (Publication 2005-149). cdc.gov npg 0573. Reference for exposure limits, target organs, and first aid.
CDC, Chemical Emergencies page for chlorine. emergency.cdc.gov chlorine facts.
Poison Control Center, national hotline: 1-800-222-1222.

US EPA, Federal Insecticide Fungicide and Rodenticide Act (FIFRA) program overview. epa.gov/pesticide-registration. Cleaners marketed with antimicrobial or biocidal claims require FIFRA registration.
US EPA, Design for the Environment (DfE) certified antimicrobial pesticides. epa.gov DfE antimicrobial.
US EPA, Stormwater discharge under the Clean Water Act, NPDES program. epa.gov/npdes. Cited in our commercial pricing coverage where wastewater capture is required.

Bureau of Labor Statistics, Occupational Employment and Wage Statistics, SOC 37-2011 Janitors and Cleaners. bls.gov oes 372011. Wage benchmark used in our margin and pricing guides.
Bureau of Labor Statistics, OES SOC 37-3011 Landscaping and Groundskeeping Workers. bls.gov oes 373011. Secondary wage benchmark for outdoor exterior services.
US Census Bureau, NAICS 561790 Other Services to Buildings and Dwellings. census.gov naics 561790. Industry code covering pressure washing establishments.
US Small Business Administration, Plan Your Business. sba.gov plan your business. Reference for startup checklists and EIN registration.
US Small Business Administration, size standards. sba.gov size standards.
IRS Publication 583, Starting a Business and Keeping Records. irs.gov/publications/p583.
IRS Publication 334, Tax Guide for Small Business. irs.gov/publications/p334.
IRS Publication 463, Travel, Gift, and Car Expenses. irs.gov/publications/p463. Cited in our mileage and trip-charge discussion.
IRS Form SS-4, Application for Employer Identification Number. irs.gov form ss-4.

California Contractors State License Board (CSLB). cslb.ca.gov. License thresholds and classifications cited in our licensing guide.
Florida Department of Business and Professional Regulation (DBPR). myfloridalicense.com. State contractor and business license portal.
Texas Department of Licensing and Regulation (TDLR). tdlr.texas.gov.
North Carolina Licensing Board for General Contractors (LBGC). nclbgc.org.
Virginia Department of Professional and Occupational Regulation (DPOR). dpor.virginia.gov.
Washington State Department of Labor and Industries, Contractor Registration. lni.wa.gov contractors.
Oregon Construction Contractors Board (CCB). oregon.gov/ccb.
Arizona Registrar of Contractors (ROC). roc.az.gov.
Louisiana State Licensing Board for Contractors (LSLBC). lslbc.louisiana.gov.

Power Washers of North America (PWNA). pwna.org. Publishes safety recommendations, certification programs, and member directories.
United Association of Mobile Contract Cleaners (UAMCC). uamcc.org. Alternative trade association with certification and safety resources.
International Window Cleaning Association (IWCA). iwca.org. Covers soft-washing and window-cleaning safety and standards.
American Rental Association (ARA). ararental.org. Reference for rental-tier pressure washer specifications.

Univar Solutions, Sodium Hypochlorite 12.5 percent Safety Data Sheet (SDS). univarsolutions.com. Search product code by region.
Brenntag, Sodium Hypochlorite SDS library. brenntag.com.
Coyne Chemical, Sodium Hypochlorite SDS. coynechemical.com.
OSHA, Occupational Chemical Database entry for sodium hypochlorite. osha.gov chemicaldata 9.
American Chemistry Council, Chlorine Chemistry Division. chlorine.americanchemistry.com.
Cleaning and Restoration Association surfactant reference guides (member publications).

Kärcher Professional, cold and hot water pressure washer product pages. kaercher.com/us/professional. PSI, GPM, and pump-type specifications used in our equipment guide.
Landa, industrial pressure washer catalog. landa.com. Owned by Kärcher; separate specification sheets for skid units.
Hotsy, hot water pressure washer product catalog. hotsy.com.
General Pump, pump specification sheets. generalpump.com.
Cat Pumps, triplex plunger pump specification sheets. catpumps.com.
Steel Eagle, surface cleaners and hose reels specification sheets. steeleagle.com.
Suttner America, spray guns, wands, and nozzles catalog. suttner.com.
Honda Engines, GX-series specifications. engines.honda.com gx series. Baseline gas-engine specifications on most 4 to 8 GPM contractor units.

Insureon, Pressure Washing Insurance overview. insureon.com pressure washing. Cited for typical general liability premium ranges.
Next Insurance, Pressure Washing Business Insurance. nextinsurance.com pressure washing.
Progressive Commercial, business insurance for cleaning contractors. progressivecommercial.com cleaning.
US Department of Labor, Workers Compensation. dol.gov workcomp. Overview of state-run programs.
National Council on Compensation Insurance (NCCI). ncci.com. Publishes the classification codes used for exterior cleaning payroll.

Google, Google Business Profile Help. support.google.com/business. Documentation for the profile listing that drives local map-pack rankings.
Google, Search Quality Rater Guidelines. services.google.com hsw sqrg. Reference for EEAT principles we apply to our own guides.
US Federal Trade Commission, Endorsement Guides. ftc.gov endorsement guides. Rules for handling online reviews and referral incentives.
Nextdoor for Business. business.nextdoor.com/local.

Not cited in a specific guide, but reviewed to keep operational recommendations current.

Cleaner Times magazine, industry trade publication for pressure washing and mobile cleaning contractors.
Pressure Wash Academy, contractor training resources.
Pressure Tek and Southside Sales, contractor supply catalogs for reference on typical wholesale equipment pricing.

Last reviewed 30 June 2026.