I stumbled upon the following FAQ from the federal Manual on Uniform Traffic Control Devices' website:
Agencies sometimes use green-colored pavement to supplement, fill in, or outline parking areas or parking stalls for electric vehicle charging stations in order to express the agency's commitment to environmentally friendly initiatives. This practice is not in compliance with Interim Approval 14 and the FHWA is not considering this alternative use of green-colored pavement for experimentation. Although the applicability of the MUTCD may be limited in certain settings involving parking stalls, agencies are encouraged to adhere to the MUTCD with respect to disallowing green-colored pavement in parking facilities for the purpose of maintaining uniformity among similar facilities.
So, it appears that painting a parking stall for the express purpose of BEV charging is frowned upon by the rule makers.
Curses!
- Q: What are the approved uses of green-colored pavement?
Agencies sometimes use green-colored pavement to supplement, fill in, or outline parking areas or parking stalls for electric vehicle charging stations in order to express the agency's commitment to environmentally friendly initiatives. This practice is not in compliance with Interim Approval 14 and the FHWA is not considering this alternative use of green-colored pavement for experimentation. Although the applicability of the MUTCD may be limited in certain settings involving parking stalls, agencies are encouraged to adhere to the MUTCD with respect to disallowing green-colored pavement in parking facilities for the purpose of maintaining uniformity among similar facilities.
So, it appears that painting a parking stall for the express purpose of BEV charging is frowned upon by the rule makers.
Curses!