The Green Party leader John Gormley is warning his Government partners that his party needs changes in the Nama legislation ahead of its convention next month.
The Greens want a number of assurances, including a guarantee that some land owned by National Asset Management Agency be rezoned for recreational and social use.
Mr Gormley has said if his party rejects the legislation the Green's position in Government would be in jeopardy.
He's also admitted that if the Greens are to remain in power members must accept the new programme for Government.
Minister Gormley has said he understands why the grassroots may be questioning their participation in Government.