Street legal e-bikes are supposed to have their class number displayed on the frame. Mine has "class 3" printed on it. It's completely unenforced though. Police officers in LA don't have time to harass e-bike riders. I can count on one hand the number of times I've ever seen police running a speed trap on cars in 13 years of living here. The bicycle LEO's only ever make token appearances on the bike paths (like on holiday weekends.)