September 5, 2003
The National Endowment for the Humanities, with the concurrence of the Office of Government Ethics (OGE), is issuing regulations for officers and employees of the NEH that supplement the Standards of Ethics Conduct for Employees of the Executive Branch issued by OGE. The supplemental regulations require NEH employees, other than special Government employees, to obtain prior written approval to engage in certain outside employment or related activities.
https://www.govinfo.gov/content/pkg/FR-2003-09-05/pdf/03-22654.pdf