Note: There is no single-link way to query the state's law database, so these links are hard-coded with an index number than changes with each legislative session. If these links take you to unrelated laws, please drop me a line and I will repair them.
Special thanks to The Alaska Legal Resource Center for the alternate (and more stable) links.
I haven't looked deeply into them yet, but I suspect that the Anchorage Municipal Code also has ordinances dealing with license plates, especially Chapter 9.52 - Vehicle Registration and Licenses.
These 1998 House and Senate bills are of interest to license plate aficionados: