SAN FRANCISCO  In one small step for preservation and one giant leap of logic, the official historical commission of California voted Friday to protect two small urine collection devices, four space-sickness bags and dozens of other pieces of detritus, all currently residing nearly a quarter of a million miles from the state.

This is not a joke. I repeat, Houston, not a joke.

Saying it wanted to raise awareness of both the state’s cosmic contribution to the Apollo 11 moon mission and the potential threats from lunar interlopers, the California State Historical Resources Commission voted unanimously to designate more than 100 pieces of space trash, scientific apparatus and commemorative tokens to its list of protected resources.

Milford Wayne Donaldson, the state historic preservation officer, said the reasoning behind the first-of-its-kind designation was simple: Scores of California companies worked on the Apollo mission, and much of their handiwork remains of major historical value to the state, regardless of where it is now or what it was for used for then.

“It has a significance that goes way further than whether it came from a quarter million miles away or not,” Mr. Donaldson said. “They are all parts of the event.”