Section 3V. Whoever knowingly sells, fabricates, assembles, glazes, installs, consents or causes to be installed glazing materials other than safety glazing materials in, or for use in, any hazardous location shall be punished by a fine of not less than five hundred nor more than ten thousand dollars, or by imprisonment in a jail or house of correction for not more than one year, or both.

The provisions of this section shall not apply to an employee of any person charged with the responsibility of compliance with sections three T and three U.