When the review process identifies areas for improvement:
(a)
The regional office must develop a corrective action plan;
(b)
BIADOT and FHWA review and approve the plan;
(c)
FHWA may provide technical assistance during the development and implementation of the plan; and
(d)
The reviewed BIA regional office implements the plan and reports either annually or biennially to BIADOT and FHWA on implementation accomplishments.