"In Philly, banning or regulating plastic bags has been seriously considered for a long time, taking a cue from Washington, D.C.’s 5-cent-a-bag charge implemented in 2010. The bag charge is intriguing based on the possible revenue it could bring to the city, which 5th Square estimated at more than $6 million."

https://www.phillyvoice.com/are-plastic-bags-way-out-philadelphia-its-wolf/