Tools
Free calculators and lookups built from the official rules. Each result shows the exact rule text it comes from, and everything runs in your browser.
- EPA Section 608
EPA 608 leak rate calculator
Work out an appliance's leak rate with either method in 40 CFR 82.152 and compare it with the leak rates in § 82.157.
Open the tool - EPA Section 608
EPA 608 evacuation level finder
Find the required evacuation level before opening or disposing of an appliance, from Table 1 of § 82.156 and the small appliance rules.
Open the tool - EPA Section 609
EPA 609 certification checker
Three questions to see whether the Section 609 certification rule in 40 CFR 82.34(a) covers your work.
Open the tool - EPA Section 609
EPA 609 equipment standards finder
Find which standard 40 CFR 82.36(a) requires for MVAC refrigerant handling equipment, by refrigerant and job.
Open the tool - OSHA construction safety
OSHA ladder angle calculator
Work out the base distance for a non-self-supporting ladder from its working length, using the one-quarter and one-eighth rules in 29 CFR 1926.1053(b)(5).
Open the tool - OSHA construction safety
OSHA excavation checker
Enter an excavation's depth and conditions to see what 29 CFR 1926.651 and 1926.652 say about cave-in protection, a way out and atmosphere testing.
Open the tool - OSHA construction safety
OSHA scaffold power line clearance
Find the minimum distance between a scaffold and exposed, energized power lines from the table in 29 CFR 1926.451(f)(6), by line type and voltage.
Open the tool - OSHA general industry safety
OSHA noise dose calculator
Work out a noise dose and 8-hour TWA from sound levels and hours with Table G-16a of 29 CFR 1910.95, and compare it with the 85 dBA action level.
Open the tool - CDL federal rules (FMCSA)
CDL hours of service calculator
See how much driving time is left under the property-carrying limits in 49 CFR 395.3: 11 hours, the 14-hour period, the 30-minute break and 60/70 hours.
Open the tool - FAA Part 107 remote pilot
Part 107 flight limits checker
Check a planned drone flight against 14 CFR 107.51: groundspeed, altitude and the structure exception, flight visibility and cloud clearance.
Open the tool - Drinking water operator (federal rules)
Lead and copper 90th percentile calculator
Find the 90th percentile of lead or copper tap results the way 40 CFR 141.80(c)(3) describes it and compare it with the 2024-revised action levels.
Open the tool - Wastewater operator (federal rules)
Secondary treatment check
Compare 30-day and 7-day effluent averages and percent removal for BOD5, CBOD5 or SS with the levels in 40 CFR 133.102.
Open the tool - CDL federal rules (FMCSA)
Hazmat placard finder
See which placards a highway load needs under 49 CFR 172.504 Tables 1 and 2, the 1,001 lb exception for Table 2 materials and the DANGEROUS placard option.
Open the tool - EPA Lead-Safe Renovator (RRP)
Lead RRP rule checker
Check whether a job is a renovation covered by EPA's lead RRP rule or minor repair and maintenance, under 40 CFR 745.82 and 745.83.
Open the tool - OSHA crane operator (construction)
Crane power line clearance
Find the Table A minimum clearance for a power line up to 350 kV and whether the 20-foot rule in 29 CFR 1926.1408 applies.
Open the tool - Forklift operator
Forklift refresher and evaluation checker
See whether 29 CFR 1910.178(l)(4) requires refresher training for an operator, and when three years from the last evaluation falls.
Open the tool - FAA aviation mechanic (A&P)
Mechanic recent experience and IA expiration
Check the 24-month recent experience condition in 14 CFR 65.83 and when an inspection authorization expires under 65.92(a).
Open the tool - Asbestos (OSHA construction and EPA schools)
AHERA reinspection and surveillance dates
Find the latest dates for a school building's next asbestos reinspection and periodic surveillance under 40 CFR 763.85(b) and 763.92(b).
Open the tool - Pesticide applicator (federal standards)
Pesticide applicator certification expiry
Find when a restricted use pesticide applicator certification expires under the five-year federal limit in 40 CFR 171.107(a).
Open the tool - Industrial radiography (NRC rules)
Industrial radiography due dates
Latest next dates for leak tests, survey instrument calibration, quarterly inspections, refresher training and job performance checks under 10 CFR Part 34.
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