Storing hazardous wastes, sitting on guardrails and relieving oneself in public are just some of the practices District Heights officials hope to curb with the first major revision of town ordinances since 1958.

The City Commission last week decided to:

* Crack down on yard sales. "Basically, the commission wants to make sure that anyone who holds a yard sale cleans up afterwards," said Geraldine Brewer, a city clerk. Regulations now require those who conduct yard sales to obtain a permit, retrieve their advertisements and clean up the site immediately or face a fine of up to $100.

* Require those who own buildings, including houses, that abut alleys to post address numbers that are visible from the alley. This would help police and firefighters locate buildings in emergencies, Brewer said.

* Impose a $50 fine for those who park in spaces reserved for the handicapped.

* Make it illegal to "defecate or urinate" in public, whether on public or private property. Brewer said the commission had received a few complaints about such activity in public places.

* Make it unlawful for anyone to congregate around or sit on guardrails along city streets. "Kids were sitting on the guardrails, and people were getting concerned that they could fall off onto the road . . . , or on the bridge, fall into the creek," Brewer said. "They thought it was a traffic hazard."

* Allow its police department to confiscate and dispose of "deadly and dangerous weapons" in violation of the law. Police Chief Charles Carlson said the department had always been authorized to confiscate weapons used in crime, as well as guns and knives that were possessed illegally.

Until now, however, the department was only able to store the guns and other weapons that could not be returned to legal owners, Carlson said. The weapons will probably be turned over to state police for disposal, he said.