The Environmental Law Centre at the University of Victoria has just released a report Seven Reforms to Address Marine Plastic Pollution.
The first set of recommendations focus on regulating single use plastics and the report states:
There is now a growing movement to ban individual-sized water bottles, plastic straws and non-biodegradable plastic tableware. For example, in 2016 San Francisco banned the sale of individual (<21 oz.) water bottles in public spaces in a regulation to be phased in over the next four years. Waivers from the rule may be given if no alternative water source is available. This follows complete bans on water bottle sales in Concord Massachusetts, at numerous universities, and in 14 US National Parks.