Group 1 - The Beijing Municipal Market Supervision Administration has initiated a special campaign against illegal modifications of electric bicycles, focusing on five types of modifications and five types of illegal sales [1] - Since the campaign began in late July, 30 cases have been filed, resulting in fines totaling 156,300 yuan and the seizure of 173 illegal vehicles [1] - The campaign targets modifications such as controllers, high beams, batteries, motors, and canopies, as well as sales of non-compliant products and accessories [1] Group 2 - Law enforcement has dismantled two illegal modification workshops and removed 258 over-standard vehicles from hidden roadside sales [1] - The administration has urged certification bodies to suspend or revoke 216 electric bicycle certification certificates to prevent problematic models from being produced and sold nationwide [1] - Online monitoring has been implemented to oversee sales platforms, leading to the removal of 357 items including illegal modification accessories and tutorials [1][2]