In my role at Plug In America, in January, I attended a National Institute of Standards and Technology (NIST) workgroup that is drafting a proposal to the National Weights and Measure committee for the regulations that will regulate EV charging equipment, the same way the sale of everything that can be weighed or measured, from gasoline to bananas, is regulated.
They are moving toward requiring that all EV charging stations installed after a certain date be labeled with the power level available in kW. It would be nice for PlugShare (and all of the other charging map vendors) to get ahead of that and start allowing us to enter that data. Only Tesla owners get easy access to volts and amps while charging, but we could contribute a lot of data. There's even talk of OVMS collecting that data automatically (with owner permission and control).
By the way, I've seen J1772 stations deliver everywhere from 250V to 187V, that's a big swing in charge rate even at the same current level. It would be a big step forward to have them labeled with current limit and either 240V or 208V service.