This section and §§39.502-39.546 shall also apply to fire and police alarm systems, district messenger systems and other signal systems not operated in connection with supply lines.
34 Pa. Code § 39.501
This section and §§39.502-39.546 shall also apply to fire and police alarm systems, district messenger systems and other signal systems not operated in connection with supply lines.
34 Pa. Code § 39.501