50 C.F.R. § 216.178 Modifications to a letter of authorization.
Title 50 - Wildlife and Fisheries
(a) In addition to complying with the provisions of §§216.106 and 216.176, except as provided in paragraph (b) of this section, no substantive modification (including withdrawal or suspension) to the Letter of Authorization issued pursuant to §§216.106 and 216.176 and subject to the provisions of this subpart shall be made by the National Marine Fisheries Service until after a notification and an opportunity for public comment has been provided. For purposes of this paragraph, a renewal of a Letter of Authorization under §216.177 without modification, except for the period of validity, is not considered a substantive modification. (b) If the Assistant Administrator determines that an emergency exists that poses a significant risk to the well-being of the species or stocks of marine mammals specified in §216.170(b), a Letter of Authorization issued pursuant to §§216.106 and 216.176 may be substantively modified without prior notification and an opportunity for public comment. Notification will be published in the
Title 50: Wildlife and Fisheries
PART 216—REGULATIONS GOVERNING THE TAKING AND IMPORTING OF MARINE MAMMALS
Subpart P—Taking of Marine Mammals Incidental To Operating a Low Frequency Acoustic Source by the North Pacific Acoustic Laboratory
§ 216.178 Modifications to a letter of authorization.
