A project I put together to answer questions on federal travel regulations. This is based on FAR subtitle F (<a href="https://www.govinfo.gov/content/pkg/CFR-2021-title41-vol4/pdf/CFR-2021-title41-vol4-subtitleF.pdf" rel="nofollow noreferrer">https://www.govinfo.gov/content/pkg/CFR-2021-title41-vol4/pd...</a>)