Miklos Haraszti, the Organization for Security and Cooperation in Europe's media freedom representative, called on Armenian lawmakers not to adopt the amendments, saying they were incompatible with OSCE commitments to media freedoms.
Under the draft amendments, Armenian broadcasters would have to pay a sharply increased fee for each aired program made by a foreign media organization.
The legislation would also ban Armenian Public Television and Radio (HHHR) from retransmitting programs of foreign broadcasters.
RFE/RL's Armenian Service primarily relies on HHHR's radio frequencies to air its daily news programs across Armenia.
Haraszti said that as Radio Free Europe/Radio Liberty is currently the only foreign media outlet using the HHHR frequency, the adoption of the amendments "would amount to a ban on their programs in Armenia."
In neighboring Azerbaijan, the national independent TV and radio channel, ANS, was barred from airing foreign broadcasts from the beginning of this year after authorities said it lacked the proper licenses.
ANS, previously an RFE/RL affiliate on FM, had also aired programs of the BBC and Voice of America.