A) Yes, as long as they have proper training and certification, any electrician is authorized to install a car charger. However, with the rise of EVs recently, there are advanced training available that specializes in EV charging. An electrician with that certification will be the best choice.
Right now, unfortunately there is no grant for EV charging points in the US. However, there are plans in motion to encourage users, similar to the UK’s EV home charge scheme. That scheme pays around 75% of the cost of the charging station and its installation.