They are still in /lib/udev/rules.d/50-udev-default.rules, where they are supposed to be:
# hplip and cups 1.4+ use raw USB devices, so permissions should be similar to
# the ones from the old usblp kernel module
SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", ENV{ID_USB_INTERFACES}=="", IMPORT{program}="usb_id --export %p"
SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", ENV{ID_USB_INTERFACES}==":0701*:", GROUP="lp", MODE="660"
They are still in /lib/udev/ rules.d/ 50-udev- default. rules, where they are supposed to be:
# hplip and cups 1.4+ use raw USB devices, so permissions should be similar to =="usb_ device" , ENV{ID_ USB_INTERFACES} =="", IMPORT{ program} ="usb_id --export %p" =="usb_ device" , ENV{ID_ USB_INTERFACES} ==":0701* :", GROUP="lp", MODE="660"
# the ones from the old usblp kernel module
SUBSYSTEM=="usb", ENV{DEVTYPE}
SUBSYSTEM=="usb", ENV{DEVTYPE}