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US law
Federal (United States)
Regulations
Title 49 CFR — Transportation
Chapter III — FEDERAL MOTOR CARRIER SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
Part 325 — COMPLIANCE WITH INTERSTATE MOTOR CARRIER NOISE EMISSION STANDARDS
Subpart E — Measurement of Noise Emissions; Stationary Test
Federal (United States) · Regulations
Subpart E — Measurement of Noise Emissions; Stationary Test
3 sections
3 sections
49 C.F.R. § 325.55
Ambient conditions; stationary test.
49 C.F.R. § 325.57
Location and operation of sound level measurement systems; stationary test.
49 C.F.R. § 325.59
Measurement procedure; stationary test.