The Commonwealth approves and recognizes the uniform registry number and will accept the registration number issued by another state if the registrant so desires, and if such registration follows the policy of uniform registration. This policy is intended to benefit the registrant by requiring but one registration to be imprinted on the law labels used, regardless of where the merchandise may be shipped. The registration number shall be preceded by the name of the state, which may be abbreviated, issuing registration number, and if the factory is located in another state than that issuing the registration number, then the name of the state in which the factory is located shall follow the registration number in parenthesis. The Commonwealth will accept the permit number issued by another state if the applicant so desires and if approval is granted and a Commonwealth sterilization or disinfection permit is issued to applicant bearing the number.