There are a few states that are required to have smog checks. One of these states that has the most smog in the United States is California and it's necessary as smog is very harmful to the environment.
If you visit the site http://www.dmv.org/smog-check.php, you can check which states require a car smog test. Simply click on a state, and it will tell you whether one is required.
Not at all. In fact, the smog test of some states in Mexico is even more stringent that those found in the United States.
In short, YES.
Yes, commericial vehicles in Washington do require smog checks. Where there are some states that don't, Washington is one that requires for a vehicle to receive one every 2 years.
the seller is responsible to present the smog test paper while selling the car, the smog test paper is acceptable within the last 90 days.
Probably not as the emissions test (Smog test) is carried out by inserting a sensor into the exhaust pipe.
yes it suppose to circulate the smoke if clogged smog test will fail
when they check your car!
HHO generators are unregulated in all 50 states at this point.
All of them
Yes. You can find a chart of all the states and their requirements for waiting periods and blood tests by googling "states that require blood test for marriage."
Your best bet is to keep the smog pump in the truck. Just take the guts out of it, this will allow the pully to spin freely. Most states require the smog pump for inspection. Thank god it's only a visual.