Extension of Approval [Mine Safety And Health Administration] Law and Legal Definition

According to 30 CFR 7.2 (Title 30 - Mineral Resources; Chapter I - Mine Safety And Health Administration, Department Of Labor; Subchapter B - Testing, Evaluation, And Approval Of Mining Products; Part 7 - Testing By Applicant Or Third Party; Subpart A – General), extension of approval means “a document issued by MSHA which states that the change to a product previously approved by MSHA under this part meets the requirements of this part and which authorizes the continued use of the approval marking after the appropriate extension number has been added.”