There are many public and private employers in the state of Texas that drug test prospective employees before they officially hire their employees. This is partially due to the Drug-Free Workplace Act of 1988, which states that any employer receiving federal grants or any form of federal money must have a drug-free workplace or else risk losing federal funding.
FindLaw states that the Drug-Free Workplace Act does not contain any provisions that specifically allow for workplace drug testing, but that the law instead requires federal government contractors and grantees to establish a drug-free awareness program for their employees. If a great number of employees have been convicted of criminal drug statues, then it can be concluded that the grantee has failed to make a good faith effort to provide a drug-free workplace, hence federal funding can be lost.

