Cancellation requests must be received by 5 p.m. the day after sample receipt for the request to be approved and processed. To cancel a test, please submit one of the following:
- A signed Test Revision Authorization Form (TRAF)
- Form must be fully completed
- Signed by the ordering institution
- Faxed to 713.798.2787
- A letter with the test cancellation request on an official letterhead
A cancellation report will be faxed to all referrals listed on the original requisition. For assistance or questions regarding test cancellation, please call 1.800.411.4363.