Any interested person may petition for the issuance, amendment, or
repeal of rules, including determinations under this part. Any such
petition shall be directed in writing to the Administrator. Any such
petition shall include: (a) A declaration of the petitioner's interest
in the proposed action; (b) a statement of the rule-making action
sought; and (c) any data available in support of the petition. Whenever
a petitioner seeks determination of ``reasonable cost'' or ``fair
value'' the statement of rule-making sought shall contain the
information required under Sec. 531.4(b) or Sec. 531.5(b), as the case
may be.
