Trucking companies use "EMIT" screening and "GC/MS" confirmation of any positive screening samples. They test for THC, opiates, amphetamines, cocaine and PCP.
Landstar is a trucking company. They give the same "SAMSHA-5" drug test as all the other trucking companies: pot, opiates, amphetamines, cocaine and PCP.
Hair follicle and urinalysis testing
The best way to pass a drug test is not to take the drug they are testing for.
They test your semen. You have to masturbate right in front of them.
It is best to go to your local commercial insurance companies and get a quote from each of them. Unfortunately, I cannot tell you which one would be the best because the best trucking insurance differs from state to state, and the kind of trucking services the company you are working for provides.
Heroin
You'll have to be more specific about what kind of law you are looking for. A person may voluntarily undergo drug testing like any other medical tests. If you are asking about testing the against their will, you'll need to supply more information.
What types of drugs are doctors testing for on their drug tests
Usually companies test for the 5 most common illegal drugs in a 5-Panel Drug test. These most commonly include THC (marijuana), Cocaine (Crack), Methamphetamine (Ecstasy), Amphetamine, Opiates (Morphine.) Although many companies are now testing for 12 or more drugs including the previously aforementioned 5.
In order to find out what kind of training you must undergo in order to attain a job in the trucking industry you much consult a trucking company and ask them about it or perhaps talk to a person who works in the industry.
It really depends what kind of drug test and who is testing you. If your parents are testing you with won of the home drug tests from Walmart then you have nothing to worry about! But if your getting tested by an officer they do have some advanced test that can test for incense but only if you smoke it with in two day because it doesn't stay in your system very long!
Companies use animal testing because of the very few similarities between human and animal tissue and DNA. They think that by testing on animals before using the drug/make-up etc on humans they can diminish the possibility of the humans getting any side-effects.