No person shall remove or render inoperative, except temporarily for maintenance purposes, any device or element of design installed on or in a motor vehicle or motor vehicle engine in compliance with regulations under the National Emission Standards Act (42 USC 1857f–1), unless such device or element is to be replaced by or modified by another device or element, approved by the registrar, the installation of which will result in a reduction of pollutant emission.
Mass. Gen. Laws ch. 90, § 7O
Motor vehicle pollutant control devices; removal
Known as the Uniform Aircraft Financial Responsibility Act
The act spans §§ 90–90 (287 sections).
Official source: Massachusetts Legislature. Reproduced from public-domain Massachusetts statutes; confirm against the official source for the current text. Not legal advice.