15 Miss. Code. R. 9-91-3.1
A Notice of Intent outlines the general scope of a planned project requiring a CON shall be submitted to the Department as early as possible in the course of planning, but no later than fifteen (15) calendar days before any person files a CON application. The Notice of Intent shall be valid for a period of 180 calendar days (six months) from date of receipt.
The review of an application of any applicant who fails to submit the Notice of Intent to Apply for a Certificate of Need at least fifteen (15) calendar days prior to the Application for a Certificate of Need shall be deferred until this fifteen (15) calendar day notice requirement is met. Under no circumstances shall an Application for a Certificate of Need be reviewed unless a Notice of Intent to Apply for a Certificate of Need has been filed first.
15 Miss. Code. R. 9-91-3.1