Those state refs are linked to the California bureau of automotive repair, aka BAR, they pretty much give the thumbs up or down on a swap i believe & as long as the engine being put in is the same year or newer & same type/class, here's a good article on honda tuning about that topic:
In the odd chance that this swap would happen on a California car, you should be aware that the B20 swap is de facto illegal.
The CRV is in a different EPA class than the Integra, so even if you get a 99-up motor and swap all the emissions equipment over, you will fail the state BAR referee test.
http://www.arb.ca.gov/msprog/aftermkt/replace.htm
Replacement Engines
Entire engines can be replacement parts. As with any other replacement part, the engine must be identical to the original. If the replacement block or engine is obtained without emissions equipment, all the equipment from the original engine must be installed on the replacement block. If the engine is not identical to the original then it is not a replacement part, instead it is considered an engine change. Engine changes are a modification that must meet certain requirements to be legal (please see "Engine Changes").
Japanese Replacement Engines
Used engines imported from Japan can be used as replacement engines as long as the engine being used has been identified as functionally identical to the original engine. Please refer to the engine importers catalogue to determine if a replacement engine is legal for installation in your vehicle.
Engine Changes
Engine changes are legal as long as the following requirements are met to ensure that the change does not increase pollution from the vehicle:
The engine must be the same year or newer than the vehicle.
The engine must be from the same type of vehicle (passenger car, light-duty truck, heavy-duty truck, etc.) based on gross vehicle weight.
If the vehicle is a California certified vehicle then the engine must also be a California certified engine.
All emissions control equipment must remain on the installed engine.
After an engine change, vehicles must first be inspected by a state referee station. The vehicle will be inspected to ensure that all the equipment required is in place, and the vehicle will be emissions tested subject to the specifications of the installed engine.
