Constitution and Standing Orders already approved by the AGM in March.
This will be followed by the usual ATUC meeting which will begin at 7.30pm.
ATUC President, Alan Robertson said, "Please do your best to come along to both these meetings. The sooner we can put in place our new constitution and standing orders the better, and after our Summer break, there is a lot of business to be considered at the normal delegates meeting.
"We hope to see you all there."