(a) If a rail transit agency determines, or is notified
by the department, that the public transportation agency safety plan
needs to be modified, the rail transit agency shall submit the modified
plan and any subsequently modified procedures to the department for
review and approval.
(b) Except as provided by subsection (c) of this section,
the rail transit agency may not implement the proposed modifications
before the modified plan is approved by the department.
(c) If the rail transit agency determines that a modification
is necessary to address an imminent safety hazard, the rail transit
agency may make a temporary modification to its public transportation
agency safety plan before that modification is approved by the department,
but the modification must be approved by the department before it
may become permanent.
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