Section 900.407 - Conduct of investigations(a)Periodic compliance reviews. OPM may from time to time review the practices of recipients to determine whether they are complying with this subpart.(b)Complaints. Any person who believes himself or any specific class of persons to be subjected to discrimination prohibited by this subpart may by himself or by a representative file with the Director, Office of Personnel Management a written complaint. A complaint shall be filed not later than 90 days after the date of the alleged discrimination, unless the time for filing is extended by OPM.(c)Investigations. OPM will make a prompt investigation whenever a compliance review, report, complaint, or other information indicates a possible failure to comply with this subpart. The investigation will include, when appropriate, a review of the pertinent practices and policies of the recipient, the circumstances under which the possible noncompliance with this subpart occurred, and other factors relevant to a determination as to whether the recipient has failed to comply with this subpart.(d)Resolution of matters.(1) If an investigation pursuant to paragraph (c) of this section indicates a failure to comply with this subpart, OPM will so inform the recipient and the matter will be resolved by voluntary means whenever possible. If it has been determined that the matter cannot be resolved by voluntary means, action will be taken as provided for in § 900.408 .(2) If an investigation does not warrant action pursuant to paragraph (d)(1) of this section, OPM will so inform, in writing, the recipient and the complainant, if any.(e)Intimidatory or retaliatory acts prohibited. A recipient or other person shall not intimidate, threaten, coerce, or discriminate against an individual for the purpose of interfering with a right or privilege secured by section 601 of title VI or this subpart, or because he has made a complaint, testified, assisted, or participated in any manner in an investigation, proceeding, or hearing under this subpart. The identity of complainants shall be kept confidential; except to the extent necessary to carry out the purposes of this subpart, including the conduct of an investigation, hearing, or judicial proceeding arising thereunder.