All work involved in the construction, maintenance, repair, upgrade and removal of the System shall be performed in a safe, thorough and reliable manner using materials of good and durable quality. If, at any time, it is determined by the FCC or any other agency granted authority by federal law or the FCC to make such determination, that any part of the System, including, without limitation, any means used to distribute Signals over or within the System, is harmful to the public health, safety or welfare, or quality of service or reliability, then a Provider shall, at its own cost and expense, promptly correct all such conditions.