The per diem rates can be accessed directly at: www.GSA.gov
For rates in the continental U.S., the traveler should select the “Maximum CONUS per diem rates” and the state of which you traveled. Since USNH policy does not permit the use of lodging per diem, the traveler should use the rates listed under “M&IE” rate.
Per Diem for Foreign Areas go to: http://aoprals.state.gov/
While traveling, the guideline for the ‘day before/after’ meals on travel days to/from the conference-remains that you are allowed to claim the meal(s) that you have during the time you are away from home or work. For example, if you leave for your trip mid afternoon-you may claim dinner meal rate ONLY. When you come home-and you are traveling early morning-and arrive home mid afternoon-you may claim breakfast and lunch ONLY. The percentage rate on the government webpage does not apply.
Please notify your department travelers of these changes and if you have any questions, please don’t hesitate to contact the Travel Manager at firstname.lastname@example.org