The nation's largest community-based environmental event will turn 30 when it returns on March 1 and Clean Up Australia chairman Pip Kiernan said "every volunteer counts".

"This year, we want Australians to Step Up and think about the positive changes they can make for the environment every day, whether that's using reusable coffee cups, refusing excess packaging or learning more about recycling correctly - each small change will go towards environmental change," she said.

To register a Clean Up or sign up to a Clean Up crew go to cleanup.org.au.