58 Pa. Code § 165.28
All public telephones on the grounds of a corporation licensed shall be padlocked with the opening of the pari-mutuel windows for the sale of daily double tickets. Each corporation licensed shall provide ample telephone facilities upon the plant grounds. No public telephone calls shall be made or received after the public telephones are closed until after the last race of the program has been completed except by officials of the Commission and officials of the Department of Revenue in pursuance of their duties at the track, or by special permission of the Executive Secretary of the Commission or the State Steward, in which case such calls shall be made in the presence of a racing official or an official of the corporation licensed.
58 Pa. Code § 165.28