Motor carrier operations in commerce
Motor carrier operations in commerce means commercial motor vehicle transportation operations either -
(1) In interstate commerce, or
(2) Affecting interstate commerce.
49 CFR § 385.3
Applicable safety regulations or requirements means 49 CFR chapter III, subchapter B - Federal Motor Carrier Safety Regulations or, if the carrier is an intrastate motor carrier subject to the hazardous materials safety permit requirements in subpart E of this part, the equivalent State standards; and 49 CFR chapter I, subchapter C - Hazardous Materials Regulations.