OKC Municipal Code will tell
There are different departments that manage the detailed concerns you have. All can be found in the OKC Muni code. No definitive language addresses entrance markers for neighborhoods where an active association has made a decision and provided the resources to carry it out. General regs apply for public safety, etc. You can read it - it's all in the code. http://www.municode.com/Resources/gateway.asp?pid=19994&sid=36
There are different departments that manage the detailed concerns you have. All can be found in the OKC Muni code. No definitive language addresses entrance markers for neighborhoods where an active association has made a decision and provided the resources to carry it out. General regs apply for public safety, etc. You can read it - it's all in the code. http://www.municode.com/Resources/gateway.asp?pid=19994&sid=36