The meaning of the Acronym MMACS is...

MMACS is

• Maintenance, Mechanical Arm, and Crew System Engineer
• Maintenance Management and Control System

More Meanings For MMACS:

• Medicare Medicaid Automated Certification Survey
• Medicare And Medicaid Automated Certification System
• Medicare Medicaid Automated Certification System
• Multimedia Mobile Access Communication Systems
• Maintenance, Mechanical Arm, and Crew System Engineer
• Maintenance Management and Control System

MMACS is also in:

• NASA
• Unfiled