; and (B) the public transportation agency safety plan established by a rail fixed guideway public transportation agency under subsection (d). (4) Assessment by Secretary In assessing the capability of a State safety oversight agency to conduct inspections as required under paragraph (1), the Secretary shall ensure that— (A) the inspection practices of the State safety oversight agency are commensurate with the number, size, and complexity of the rail fixed guideway public transportation systems that the State safety oversight agency oversees; (B) the inspection program of the State safety oversight agency is risk-based; and (C) the State safety oversight agency has sufficient resources to conduct the inspections. (5) Special directive The Secretary shall issue a special directive to each State safety oversight agency on the development and implementation of risk-based inspection programs under this subsection. (6) Enforcement The Secretary may use any authority under this section, including any enforcement action authorized under subsection (g), to ensure the compliance of a State safety oversight agency or State safety oversight program with this subsection. . (b) Deadline