In rulemaking proceedings subject only to the procedural requirements of 5 U.S.C. 553:

(a) All oral communications from outside FEMA of significant information and argument respecting the merits of a proposed rule, received after notice of proposed informal rulemaking and in its course by FEMA or its offices and divisions or their personnel participating in the decision, should be summarized in writing and placed promptly in the Rules Docket File available for public inspection.

(b) FEMA may conclude that restrictions on ex parte communications in particular rulemaking proceedings are necessitated by consideration of fairness or for other reasons.