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title 40
Protection of Environment
chapter I-i35
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
part 1037
PART 1037—CONTROL OF EMISSIONS FROM NEW HEAVY-DUTY MOTOR VEHICLES
subpart E
Subpart E—In-Use Testing
Subpart E. Subpart E—In-Use Testing
§ 1037.401 - General provisions.
