An "unholy alliance" in the NSW parliament could mean girl guides, scouts and rural bushfire services are thrown off crown land, according to Premier Barry O'Farrell.
The government says changes to the Crown Lands Act are needed to ensure secondary tenures on crown land, such as stock routes, cemeteries and showgrounds, can continue.
A bill passed the lower house without amendment on Wednesday but Mr O'Farrell said an "unholy alliance" of NSW Greens, the Shooters and Fishers Party and Labor could derail it in the upper house.
Mr O'Farrell told parliament that 7000 of the 59,000 tenures over crown land may be affected.
These included men's sheds, libraries, council chambers, bushfire brigades and surf clubs.
News that makes sense
Your trusted source for staying up-to-date with the world around you. Get free daily news updates and analysis, straight to your inbox.
But Labor MP Carmel Tebutt said the changes were a "smokescreen for a crown land grab".
She said they would accord extraordinary power to the government to grant uses on crown land.
The amendments could allow secondary leases to be granted, even if they are not for a public purpose and are incompatible and inconsistent with the reason the crown reserve was granted, she added.
The government introduced the changes last month after a court decision, known as the Goomallee Claim, found that a grazing licence on crown land reserved for public recreation was unlawful.
