Skip to main content
Home
Code of Federal Regulations
C.F.R. Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER U—AIR POLLUTION CONTROLS
PART 1065—ENGINE-TESTING PROCEDURES
Subpart L—Methods for Unregulated and Special Pollutants and Additional Procedures
PREV
NEXT
Smoke Opacity
§1065.1123 General provisions for determining exhaust opacity.
§1065.1125 Exhaust opacity measurement system.
§1065.1127 Test procedure for determining percent opacity.
Cookie settings