GroundRules
40 CFR 201.21: Quantities measured.
Where this section sits in the code
- Title 40—Protection of Environment
- CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
- SUBCHAPTER G—NOISE ABATEMENT PROGRAMS
- PART 201—NOISE EMISSION STANDARDS FOR TRANSPORTATION EQUIPMENT; INTERSTATE RAIL CARRIERS
- Subpart C—Measurement Criteria
The quantities to be measured under the test conditions described below, are the A-weighted sound levels for “fast” or “slow” meter response as defined in the American National Standard S1.4-1971.
Collected 2026-08-27T02:26:04Z. Source file · JSON