Section 121.016 - Certificate of Registration(A) No person shall maintain a laser facility that is required by 105 CMR 121.000 to be registered unless such a person has obtained a valid certificate of registration for such facility.(B) A person who applies for registration and whose application meets the requirements of 105 CMR 121.000, shall, upon payment of the required fee, be issued a certificate of registration effective on the date stated on such certificate.(C) A current certificate of registration or a legible copy thereof shall be posted conspicuously at each registered facility.(D) The Director of the Radiation Control Program may incorporate in the certificate of registration, at the time of issuance or thereafter, any such additional requirements and conditions with respect to the registrant's receipt, possession, use, and transfer of laser devices as said Director finds appropriate and necessary for the protection of the general public or individuals against laser hazards.