The purpose of Iowa's drug testing law (Iowa Code Section 730.5, paragraph 9.h. and Administrative Code Section 640) is to enhance worker safety by creating workplaces that are free of drugs and substance abuse. One tool available to private sector employers is drug testing (inclusive of alcohol testing). A private sector employer who chooses to use this tool must attend a minimum of two hours of initial training to begin, and a minimum of one hour annual update training. This training meets the one-hour annual refresher training requirement and includes information concerning the recognition of evidence of employee alcohol and other drug abuse, the documentation and corroboration of alcohol and drug abuse, and the referral of employees who abuse alcohol or other drugs to the employee assistance program.