Headquarters Marine Corps
MCCAST New Users Start


The instructions below are intended to assist USMC stakeholder in attaining a MCCAST account - please visit the RMF or Account page for more information abut MCCAST or Accounts. 

Step 1. Check MCW Domain (HCS) Account:



Check for existing account by visiting EIS Active Directory site* or MCCAST-N*.  See Figure 1 below.

Who can check for HCS Accounts. Users must have a current and valid MCW Domain (HCS) account. Contact your ISSM, Program Manager or EIS Help Desk for assistance. See below contact information.

*Who can submit HCS Account Requests. User's Government POC (CIV or MIL) must submit the account request on behalf of the user. Please note the Government POC must have a HCS account in order to submit the request.


Figure 1. MCW / HCS Account Check

Existing Accounts 

See Account Re-use Policy on the right and EIS /HCS AD Search below. ​​​​​​​Do not proceed until:

  • User login (see Login column) is noted
  • Email address is correct
  • CAC Enabled
  • Account activated (Enabled Status column)​​​​​​​​​​​​


  • ​​​​​To Update, contact EIS @ / (816) 705-4865.
  • Go here for further questions regarding HCS accounts, to include how to/who to contact to update: HCS Homepage​​​​​​

Account Re-use Policy. Users who are transitioning to a different affiliation (active duty, civilian, or contractor) will need to have their Government POC request a new HCS account on their behalf.  The accounts will no longer be updated to reflect the affiliation change or update PIV and email. The old account will be disabled. These affiliation changes include:

  • Active duty military to civilian or contractor
  • Civilian to active duty military or contractor
  • Contractor to active duty military or civilian​​​​​​​​​​​​​​​​​​​​​


No Existing Account 

Go to the HCS link​​​ here to submit for account - Be sure to select "MCCAST" as the "site requesting access to" so the appropriate Site Collection Administrators can take action.


Since the USMC SIPR accounts are all on the MCW domain (HCS), the account creation process is different.

USMC MCEN-S account holders.

Proceed to Step 2, as long as your account is valid and up to date. Contact your local ISC for support.

Non-USMC users.

Coordinate with corresponding USMC sponsor and have them submit for an account using the method below.

  • Follow their local command's policies for obtaining a SIPR account via Remedy.

  • Once the account is created, user can log in to and submit a MCCAST Support Request.

  • Do not proceed to Step 2.

Step 2. Cyber Awareness Training Certificate

A current Cyber Awareness Challenge Certificate is required for access to MCCAST. The course can be taken from the following locations:

Step 3.  Login to MCCAST

Go to: (for SIPR:

  • If you see the following screen:
    • you have either selected the wrong certificate (make sure you are using the Authentication cert) or,
    • something is misconfigured with your MCW account. Please contact the EIS Helpdesk ( to verify your MCW account is configured properly for PIV Authentication. The MCCAST Team has no control over this and will not be able to support you until your MCW account is properly functioning.
       F5 Error


You should be presented with the screen to the right:  
  • Follow the New User Instructions, and be sure to upload your Cyber Awareness certification in the attachments section (Hint: Click the "Add New" button directly across from the word "Attachments") as well as any other required documents noted in the instructions and below:
    • ISSMs must submit their ISSM Appointment letter
    • SCVs must submit their SCV Appointment letter if, they have one, otherwise they should follow the procedure for requesting SCV rights within MCCAST available here: Validator Instructions​​​​​​​​​​​​​​
    • For contractors, memo or email that has been digitally signed by the ISSM or PM they are reporting to, that states they have a contractual need to access MCCAST.
  • Before submitting, you must select the USMC office that you will be supporting.
  • You must click the "Submit Request" button at the top of the screen to place the request in queue.
  • When your request has been processed, you will receive an email informing you that it is complete.
  • All package assignments must be completed by the ISSM.


  • Compliance Branch / Cybersecurity

    Headquarters Marine Corps Cybersecurity Division

    Pentagon, Room 1D247
    Washington, DC 20350-3000



Last Update: 22 February 2022

Headquarters Marine Corps