(a) A Tier III trainset shall be equipped with operative sanders, if required by the railroad and as approved by FRA.

(b) Sanders required under this section shall comply with §229.131(a), (b), and (d) of this chapter, except that instead of the requirements of §§229.9 and 229.23 of this chapter:

(1) The requirements of §238.17 shall apply to the tagging and movement of a Tier III trainset with defective sanders; and

(2) The requirements of the railroad's ITM program shall apply to the next periodic inspection of such a trainset.

(c) In addition to the requirements in paragraph (b) of this section, the railroad's ITM program shall specify the inspection, testing, and maintenance requirements for Tier III trainsets equipped with sanders.