During an Aug. 3 city council meeting, the City of Costa Mesa passed a motion 4-3 to allow non-U.S. citizens to serve on the city’s Planning Commission. The measure will also no longer require commissioners to reside in the districts they represent.   Costa Mesa Councilmember Arlis Reynolds said she supported the motion because she wants the city to follow its mission statement to be as inclusive to residents as possible.   “When I’m looking at our policies and ordinances as they come before us, I’m always asking the question of, ‘Why does this policy exist?’” Reynolds said during the council meeting, referring to the requirement that a commissioner must be a registered voter. “Oftentimes, there’s a really good reason for a rule to exist. In this case, I didn’t see a really good reason for this rule to exist,” she said.  The city’s planning commission is tasked with advising the city council on …