(a) An individual shall not engage in plumbing work requiring a license, registration or endorsement under the Plumbing License Law without a current license, registration or endorsement issued by the Board.(b) An individual shall not perform a plumbing inspection without a current affiliated Plumbing Inspector License issued by the Board.(c) A person shall not employ or enter into a subcontract with an individual to engage in plumbing work requiring a license, registration or endorsement under the Plumbing License Law if the individual does not hold the appropriate license, registration or endorsement required for the type of work performed.(d) A political subdivision shall not employ or contract a person who does not hold a Plumbing Inspector License issued by the Board. The plumbing inspector must be affiliated with the political subdivision having jurisdiction.(e) A person shall not use the certificate of licensure, pocket card or license or registration number of another licensee or registrant.(f) Licensees and registrants shall not allow another person to use their certificate of licensure, pocket card or license or registration number.