No employe or representative of a laboratory, either personally or through an agent, may solicit referral of specimens to his or any other laboratory in a manner which offers or implies an offer of rebates to persons submitting specimens or other feesplitting inducements. This applies to contents of fee schedules, billing methods or personal solicitation. No person involved in the submission of specimens may receive payment or other inducement by the laboratory or its representative.
28 Pa. Code § 5.71