Detroit Refinery

Detroit Refinery lit up at night

Step 1: Requirements for Working at the Refinery

The Michigan Refining Division for Marathon Petroleum Company LP utilizes the following to provide compliance with our Drug and Alcohol Program:

  • The DISA Contractors Consortium (DCC) Program for Urine & Breath Alcohol Testing; including subsequent random testing; and
  • The DISA Contractor Consortium Hair Testing (DCCHT) Program for Hair Testing.

All contract workers will need to be DISA compliant (green light status on the DISA database) before entering the refinery, which includes successfully completing one (1) DISA Hair test
-and- a DISA urine & breath alcohol test prior to entry into the Michigan Refining Division. Please allow sufficient time (2 weeks is recommended) for processing of the required tests in advance of your planned refinery start date. Random DISA urine & breath alcohol testing is utilized by the refinery.

It is highly advised that contractors check their DISA status before coming to the refinery for their first day.  This can only be done by contacting DISA directly.

The website for DISA, Inc. is:

To enroll in DISA call or email DISA Sales Department:
Phone: 281.673.2530

DISA Enrollment Information 

Contract Employees must pass a background security check from one of the following background check providers: (These are the currently approved MPC background check providers)

  • DISA Global Solutions
  • First Advantage
  • Guidepost Solutions LLC
  • S2 Verify

Contacts for each of these organizations are listed below.

Approved Background Check Provider


Detroit Safety Orientation
Part 1 - Online Safety Orientation (All Contractors must complete Part 1)

New Changes Effective August 1, 2020

1. The Online Safety Orientation (approximately 1 hour) will provide an orientation to the Detroit Refinery's HESS (Health, Environment, Safety and Security) policies.
     a. At the end of the module, users must complete a final exam to receive completion credit.
     b. Completion of the Online Safety Orientation is required annually.

2. The Online Safety Culture Orientation (approximately 15 minutes) educates participants on the key elements of MRD’s safety culture. 
     a. At the end of the module, users must complete a final exam to receive completion credit.
     b. Completion of the Online Safety Culture Orientation is only required initially for NEW contractor's on site as of
         August 1, 2020.
     c. Turnaround Contractors are exempt from this requirement.

  • The Online Safety Orientation and Online Safety Culture Orientation is hosted by ISNetworld
  • Contractors must be entered into the Employee Information section of ISNetworld by their contracting company. The contracting company must enter a valid email address for each person. This email provides their user name and temporary password.  Review the following link for ISN help: ISN Online Training Tool - Contractor.pdf
  • Contractors will be allowed to obtain an access badge after they successfully complete the Online Safety Orientation, Online Safety Culture Orientation, provide proof of completion of all other entry requirements (DISA, DCRMP, etc.) and complete an on-site verification test.

Safety Orientation Expiration Details

  • Detroit Safety Orientation expires 1 year from the date of completion of the Online Safety Orientation.

Additional Resources:

Refinery Access ID Card
Refinery access ID cards can be obtained at the Marathon Lenel Office at:

910 South Dix Street
Detroit, MI 48217

The following criteria will be verified prior to issuing the refinery access ID card:

  • DISA Compliance
  • Background Check Compliance
  • Successful completion of the online safety orientation

Individuals must present a valid Government-issued photo ID to receive their refinery access ID card along with the Lenel Packet.

International workers must present a valid worker authorization credential.

For further information, please contact

A parking permit is required if you intend to park your vehicle on Marathon property. Contract workers will need to fill out the Contractor Parking Access Form to receive a parking permit that allows them to park their vehicle(s) in a contractor lot. Along with the Contractor Parking Access Form, contract workers need to provide the security with the following items prior to receiving a parking decal:

  1.  Valid government issued driver's license
  2. Current vehicle registration
  3. Current proof of insurance


All persons interested in becoming contractors at the Marathon refinery in Detroit must complete and submit all of the forms below as discussed in order to come to work at the facility. Your supervisor should assist you in completing the steps required prior to coming on site. 

Additional Resources

Step 2: What to Know before Coming Onsite

Illegal drugs and unauthorized alcohol, weapons and unauthorized firearms are prohibited on refinery property. All individuals are subject to search while on company property.

Alcohol and Drugs

Vehicle Inspection and Search

Beards are prohibited within the refinery. Mustaches and short sideburns are permitted if they do not interfere with the facial seal of protective breathing devices.

General Safety Rules

Respiratory Protection Plan

The following PPE is required for entry into a process unit and/or tank farm area(s):

  • Hard Hat
  • Chemical Goggles - Available on Person
  • Safety Glasses
  • Hearing Protection
  • NFPA 2112 FR Clothing
  • Gloves - Min - Cut Level 3 Glove for General Duty Use
  • Personal H2S Monitor
  • Safety Toed Shoe with a defined heel.

Certain areas/jobs may require additional PPE which shall be worn in accordance with posted signs or as stated on the Safe Work Permit.

NOTE: Contractor PPE is not supplied by Marathon Petroleum Company LP.

Safety One

Please view this video that best describes the fundamental pillars of MPC’s safety culture. If you have any questions or want more information please contact the Site Safety Supervisor for information.