AND Within 30 days of applying for an Mine ID or when there are any changes to the legal ownership structure for a mine, a mine operator must file a Legal Identification Report with MSHA. MSHA uses this information to properly identify persons charged with violating mandatory safety and health standards and in the assessment of civil penalties on those violations. The Office of the Solicitor uses the information to expedite service of documents upon the mine operator.
I do not see how it could be more clearer but if you unsure call yourself I posted telephone number there is also a mine ID change app. but you need to log on to get the form but you must own a mine, which I assume you do not.