Permission granted under this part by the Director may be rescinded by him at any time upon a finding that the use of the symbol or symbols involved is injurious to their integrity or inconsistent with the purposes of the National Park Service in the fields of conservation and recreation, or for disregard of any limitations or terms contained in the permits.

[35 FR 8734, June 5, 1970, as amended at 36 FR 16508, Aug. 21, 1971]