School zones, like the one outside RJ Hawkey Elementary, will be back in effect September 3. (PHOTO - Olivia Condon)

Schools all over Airdrie will be back in session Tuesday, September 3, which means school zones will be in effect as well. The posted 30km/h starts at 7:30 am in town and goes until 5 pm.

Cst. Megan Fillion with the Airdrie RCMP says if you're unsure if the school zone is active or not, just slow down.

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Ralph McCall's school zones, including the 1st Avenue section, have been in effect since August 22. Fillion says they've been in the area at least three times since the doors opened a week and a half ago.