Exterior Painting (brick) - permitting process?

[Rishi B.]

Hi all - thanks in advance for your help! I'm looking to update the brick exterior on a 6-flat. I've been trying to research whether any type of permit is required. 

I do see that masonry cleaning/chemical wash (the prep work) -
"may require an air pollution control permit from the Environmental Permitting and Inspections Section of the CDPH"

And then digging further I see there's also a separate Architectural Surface Cleaning Permit could be required.

Anyone have experience with this? Thanks!