The Irish Self-Catering Federation is accusing Kerry County Council of 'jumping the gun' in issuing enforcement notices to people operating short-term let businesses.
It follows plans approved by Cabinet, which will see the introduction of a tourism letting register.
Under the plans, property owners must register tourism accommodation with Fáilte Ireland as a short-term rental option; and have appropriate planning; or they will face penalties.
Chair of the ISCF, Máire Ní Mhurchú, says the council has issued enforcement notices to self-catering owners in the Killarney area last week.
She says this is premature.
Radio Kerry has contacted Kerry County Council for comment.