Serving in Baha'i Administration is now specified as criminal act.

On September 13, 1983, the Universal House of Justice sent a cable to all National Spiritual Assemblies regarding the Iranian government's banning the Bahá'í Administration on August 29, 1983, noting the government's statement permitted Bahá'ís to "practice beliefs as private individuals provided they do not teach or invite others to join (the) Faith, they do not form Assemblies or have anything to do with Administration. Serving in Bahá'í Administration now specified as criminal act."

https://www.reddit.com/r/OnThisDateInBahai/comments/6zqxpf/september_13_on_this_date_in_1983_the_uhj_cabled/