The safety chapter says intrastate in the incorporation clause itself
Most states extend federal safety text inward to intrastate operation somewhere other than the adoption sentence, which is why the extension is often the hardest thing to verify. Massachusetts puts it in the sentence.
540 CMR 14.03 opens: “Subject only to the specific exceptions and limitations expressly provided in 540 CMR 14.00, the following are incorporated as the regulations of the Registry of Motor Vehicles governing motor carrier safety and the transportation of hazardous materials upon the ways of the Commonwealth of Massachusetts in both intrastate and interstate commerce:” and then lists the incorporated parts by number and caption — compliance with noise emissions standards, the carrier safety assistance program, controlled substances and alcohol testing, commercial driver license standards, minimum levels of financial responsibility, general safety regulations, driver qualification, driving, parts and accessories, hours of service, inspection and repair, hazardous materials driving and parking rules, and named hazardous materials subparts.
The purpose section says the same thing a second time. 540 CMR 14.01 states that the chapter was adopted to govern the use and operation of certain motor vehicles, trailers and commercial motor vehicles, the auditing of records of commercial motor carriers, and motor carrier safety and hazardous materials transportation “in both intrastate and interstate commerce upon the public ways of the Commonwealth”.
The opening qualifier is load-bearing and travels with everything below: “Subject only to the specific exceptions and limitations expressly provided in 540 CMR 14.00”. The adoption is whole except where the chapter itself carves out, and there is exactly one carve-out section, described further below.
The compliance obligations are also stated as reaching intrastate carriers by name. 540 CMR 14.04(1) requires “Every motor carrier operating in intrastate or interstate commerce, or both, upon the public ways of the Commonwealth” to comply with the incorporated federal regulations and with named provisions of the state’s motor vehicle and highway statutes, and 540 CMR 14.04(3) requires a motor carrier, “whether engaging in intrastate or interstate operation”, to maintain a listed set of records in the regular course of business.
That records list is worth reading as an operational checklist, because it is the clearest statement in Massachusetts law of what a state officer expects to see. It runs to financial responsibility records, driver qualification files including all required forms, drug and alcohol testing records, hours of service, driver vehicle inspection reports and vehicle maintenance records, hazardous materials records where applicable, and accident registers together with copies of accident reports required by any governmental entity or insurer.