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Travel Policies
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A copy of all policies in use now or at any time between a certain date range. These records record when government employees request special permission to fly in anything above coach class.
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Tips for filing this request
Travel expenses of specific government employees are often requested. But in the related article, the requester took the reverse approach and request the premium class travel permission for hosts of employees from hosts of government agencies.
Sample FOIA request of this type
https://www.muckrock.com/foi/united-states-of-america-10/premium-travel-policies-nrc-10614/
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Jason Smathers/ MuckRock