Summary of Change.
Volume 3, Chapter 18, Section 4, Part B Operations Specifications—En Route
Authorizations and Limitations.
Explanation of Policy Changes. This change
incorporates new information into
Volume 3, Chapter 18, Section 4, OpSpec/LOA
B057, National Parks Air Tour Management Operations Under Title
14 CFR Part 136. This change introduces the ability to utilize a Voluntary
Agreement (VA) in lieu of operating either with interim operating authority
(IOA) or under an Air Tour Management Plan (ATMP).