From next summer anyone applying for a job at the National Assembly of Wales must be able to speak basic Welsh.
The National Assembly employs more 300 staff in positions such as administration, finance, information technology, library services, security, translation and human resources.
Future candidates will be expected to demonstrate they can show "basic linguistic courtesy" or commit to gain those skills during their induction.
Assembly member Adam Price, is an assembly commissioner with responsibility for official languages, in a report he says:
To provide excellent bilingual services... we will need to make great strides at times, including the way that we set the language requirements of particular posts.
Mr Price said basic linguistic courtesy entails "being able to recognise, pronounce and use familiar phrases and names, such as Cynulliad Cenedlaethol Cymru correctly, and to understand basic texts such as simple e-mails".
However concerns have been raised that the new rules may have an impact on the the assembly's ability to recruit staff from underrepresented groups such as black, asian and other minority ethnic groups.
Bethan Jenkins AM Chair of the Culture, Welsh Language and Communications Committee told Assembly Members:
"Clearly, this is an important part of deciding whether mitigation measures in this area are sufficient."
UKIP said it supported a target of one million Welsh speakers by 2050, but the policy should "not be at the expense of choosing the best person for the role".
The party added that it was "not acceptable if monoglot English speakers feel excluded from public sector roles in Wales."