O&M stands for?

O&M stands for?

• A. Outside air
• B. Operation and Maintenance
• C. Original and Modification
• D. Organizational and Management

Answer: (B)

Operation and Maintenance describes the ongoing activities required to run and care for building systems after they are installed. Operation covers the day-to-day use of equipment and controls, while maintenance involves regular inspections, servicing, repairs, and replacements to keep systems performing as designed and to preserve energy efficiency and occupant comfort. This term appears in manuals, commissioning deliverables, and facility-management practices to ensure knowledge transfer and proper documentation for long-term performance. The other options don’t match standard terminology in this context: Outside air refers to ventilation intake, Original and Modification isn’t a standard acronym used for building systems, and Organizational and Management isn’t the common pairing used in this setting.

Operation and Maintenance describes the ongoing activities required to run and care for building systems after they are installed. Operation covers the day-to-day use of equipment and controls, while maintenance involves regular inspections, servicing, repairs, and replacements to keep systems performing as designed and to preserve energy efficiency and occupant comfort. This term appears in manuals, commissioning deliverables, and facility-management practices to ensure knowledge transfer and proper documentation for long-term performance. The other options don’t match standard terminology in this context: Outside air refers to ventilation intake, Original and Modification isn’t a standard acronym used for building systems, and Organizational and Management isn’t the common pairing used in this setting.