41 CFR § 301-74.2
What costs should be considered when planning a conference?
June 9, 2020
When planning a conference, you should consider all direct and indirect conference costs paid by the Government, whether paid directly by agencies or reimbursed by agencies to travelers or others associated with the conference. Some examples of such costs are:
(a) Authorized travel and per diem expenses;
(b) Hire of rooms for official business;
(c) Audiovisual and other equipment usage;
(d) Computer and telephone access fees;
(e) Light refreshments;
(f) Printing;
(g) Registration fees;
(h) Ground transportation; and
(i) Employees' time at the conference and on en route travel.