Tamworth regional grounds and sporting complexes are already glass-free and most only sell mid-strength drinks, but there could be more curbs on the way.

Tamworth council grounds are part of the Good Sports program, which encourages and enables clubs to serve alcohol in a safe way.

But sports administrators say clubs are being pushed closer to the point of alcohol-free sports events.

"I don't think it will be long before alcohol is banned at all sporting events. It is another case of a few bad apples ruining it for everyone else," Group 4 rugby league secretary Michael Schmeidel said.

His prediction comes on the back of two Newcastle ovals, Charlestown and Mahrahkah, proposing 24/7 alcohol bans on their venues because of broken glass on and off the fields, graffiti and damage to property and buildings.

The request has been sent to Newcastle City Council and looks like getting approved.

Central North Rugby president Peter Burke said there hadn't been any reports of alcohol abuse or problems in the region this year, but admitted that "every club has their own licences, and police themselves very effectively to prevent this kind of thing from happening".

"The problem with taking drastic measures such as banning booze is that it may ruin many country sports teams who rely on the profit from bar sales to keep the clubs afloat, as well as gate takings dwindling, if spectators can't have a drink while they watch," Mr Burke said.

"This kind of action could be very detrimental to some country towns and also have a knock-on effect to local clubs and pubs as well."

Tamworth Regional Council spokesman Brian Sheedy said there were some no-alcohol rules in place for some clubs, but so far the general policy was working well.

"All parks have restrictions of no alcohol to be served after 8pm. We don't have any current issues with sporting fields and would assess on an 'as-needs' basis any problem areas and amend the policy accordingly," Mr Sheedy said.