Any person who has been convicted of any of the crimes enumerated in section 504(a) of the ``Labor Act'' whose service, present or prospective, as described in that section is or would be prohibited by that section because of such a conviction or a prison term resulting therefrom; or any person who has been convicted of any of the crimes enumerated in section 411(a) of the ``Pension Act'' (29 U.S.C. section 1111) whose service, present or prospective, as described in that section is or would be prohibited by that section because of such a conviction or a prison term resulting therefrom, may apply to the Commission for a Certificate of Exemption from such a prohibition under the applicable Act.