Skip To Main Content

Header Holder ( Default )

Single Hero - Default


Drug & Alcohol Testing​

For program questions or problems contact:

​Preferred Alliance
16960 S. Harlan Road Building 2, Suite 2D
Lathrop, CA 95330-8738
Ph:  (800) 272-5227
Fax: (209) 858-5693

Problems with testing, positive test results, MRO questions, or serious problems call:


​​For Updates or changes to personnel lists, please send a fax to (209) 858-2669 or email Support at

​​If there is ever a problem, no matter how big or small, Nanette Mendez-Latalladi should be notified.

  • ​​Ballico-Cressey School District
  • Delhi Unified School District​
  • Dos Palos-Oro Loma Unified School District
  • El Nido Elementary School District​
  • Gustine Unified School District
  • Hilmar Unified School District
  • Le Grand Elementary School District
  • Le Grand Union High School District
  • Livingston Union School District​
  • Los Banos Unified School District
  • McSwain Union Elementary School District
  • Merced City School District - CHP Approved
  • Merced River Union Elementary School District​
  • Merced County Office of Education
  • Merced Union High School District - CHP Approved
  • Plainsburg Union Elementary School District
  • CHP Approved
  • Planada Elementary School District​
  • Snelling-Merced Falls Union Elementary School District
  • Weaver Union Elementary School District
  • Winton Elementary School District​​

​Directions for Maintaining Program

  • Directions for Maintaining Program​
  • ​​​DMV - Employee Hiring Checklist
  • DOT Phone List​
  • Employee Hiring Checklist​


  • ​Absentee Report
  • DMV-Dismissal for reason involving pupil transportation safety
  • DMV-Positive controlled substance test result report form
  • Documentation of testing information by a previous employer
  • Employee acknowledgment and consent of substance abuse
  • Post-accident rel​ease form
  • Previous Pre-employment Employee Alcohol and Drug Test Statement
  • Release of information form​
  • Reasonable cause documentation
  • Release of drug compliance information to MCSIG
  • Telephone confirmation with previous employer
  • Testing referral form