Response : Unfortunately this is true and another thing to be kept in mind is that it is considered a criminal offence and hence the claim can be denied on the basis of drug usage by an insurance company.

A new roadside survey by the National Highway Traffic Safety Administration confirms a continuing decline in the percentage of legally intoxicated drivers

In 1973, 7.5 percent of drivers had a blood alcohol concentration (BAC) of .08 or higher. In the latest survey, that figure had fallen to 2.2 percent. A BAC of .08 or higher is now above the legal limit in all 50 states and the District of Columbia.

NHTSA is conducting further research to assess how drug traces correspond to driver impairment since some drugs can remain in the body for days or even weeks. Should further research indicate that drugs pose the same type of traffic safety risk as alcohol, NHTSA is committed to applying lessons learned in fighting the drunk driving problem.

Among the findings of the latest roadside survey are these:

• The percentage of male drivers with illegal BAC levels was 42 percent higher than the percentage of alcohol-impaired female drivers.

• Drivers were more likely to be illegally drunk during late nighttime hours (1 a.m. to 3 a.m.) than during daytime or early evening hours.

• Motorcycle riders were more than twice as likely as passenger vehicle drivers to be drunk (5.6 percent compared with 2.3 percent). Pickup truck drivers were the next most likely to have illegal BACs (3.3 percent).

The 2007 survey involved more than 300 roadside locations throughout the U.S.

For DUI insurance you will have to obtain a SR22 car insurance and cheap sr22 car insurance can be found online. Drug usage is a criminal offence which is an exclusion for insurance.