Healthcare Construction and Renovation: ICRA, ILSM, and Infection Control During Projects
Published: March 18, 2026 | Category: Facility Management | Publisher: Healthcare Facility Hub
Introduction: Managing Construction Risk in Active Healthcare Environments
Healthcare construction and renovation projects present unique challenges: work must proceed in occupied facilities with vulnerable patient populations while maintaining environmental compliance and infection prevention standards. Under Joint Commission’s Accreditation 360 framework (effective January 1, 2026), the unified Physical Environment (PE) chapter consolidates construction standards with infection control and life safety requirements, demanding coordinated planning between construction management, infection prevention, and facility engineering teams.
This comprehensive article addresses the complete framework for managing healthcare construction projects with emphasis on infection control risk assessment, interim life safety measures, and regulatory compliance under current standards including FGI Guidelines, NFPA 101, ASHRAE 170, and CMS Conditions of Participation.
Infection Control Risk Assessment (ICRA) Framework
ICRA Purpose and Regulatory Context
ICRA is required by:
- Joint Commission PE chapter: Mandates ICRA for all construction and major renovation projects
- CMS Conditions of Participation: Requires infection prevention measures during construction; ICRA is primary planning tool
- CDC guidelines: Provide evidence-based recommendations for construction-related infection prevention
- AORN (Association of periOperative Nurses): Standards for operating room construction and environmental controls
- FGI Guidelines for Design and Construction of Health Care Facilities: Comprehensive design standards that inform ICRA risk levels
ICRA Team Composition
Effective ICRA requires multidisciplinary collaboration including:
- Infection Prevention Specialist: Leads ICRA process, identifies infection risks, recommends control measures
- Facility Manager/Engineer: Provides technical expertise on construction methods, utility impacts, and feasibility
- Construction Manager: Explains construction sequencing, timeline, and contractor capabilities
- Clinical Leadership: Represents departments affected by construction; identifies operational impacts and patient population concerns
- Occupational Health/Safety: Addresses worker health and safety; identifies hazards requiring mitigation
- Environmental Services: Identifies cleaning and contamination control challenges
- Risk Management/Compliance: Ensures regulatory requirements are met; documents decisions for accreditation purposes
ICRA Risk Level Determination
The ICRA process identifies three levels of construction-related infection risk, each requiring progressively more stringent controls:
Category 1: Standard Precautions
Characteristics: Work in non-patient care areas, non-critical support areas, or exterior work with no direct connection to occupied clinical spaces
Minimum Controls:
- Standard dust and debris management practices
- Separation of construction area from patient care spaces
- Basic housekeeping and waste management
- Work confined to designated hours when possible
Examples: Renovation of administrative offices, exterior painting, parking lot expansion, renovation of empty patient rooms (before occupancy)
Category 2: Enhanced Precautions
Characteristics: Work in or adjacent to occupied patient care areas, or work that creates dust and debris generation in areas with patient vulnerability risk
Required Controls:
- Dust barriers and negative air pressure control in construction area
- HEPA filtration of air returning to occupied spaces
- Barrier protection at unit entrances
- Restricted access to construction zone
- Enhanced cleaning protocols in adjacent patient care areas
- Specialty contractor requirements (qualifications, clean practices)
- Work timing coordination with clinical operations
Examples: Renovation of hospital corridors with adjacent patient rooms, renovation of support areas accessed by patients (bathrooms, waiting areas), renovation of staff work areas affecting patient care operations
Category 3: Maximum Precautions
Characteristics: Work in high-risk areas occupied by immunocompromised patients; areas where airborne transmission risk is highest
Required Controls:
- Maximum containment: sealed, isolated construction zone with negative pressure
- All air exhausted to exterior; no recirculation to occupied spaces
- HEPA filtration of all air supplies and exhausts
- Specialized contractor requirements with infection control expertise
- Real-time air quality monitoring
- Enhanced access control and personnel decontamination
- Potential need to relocate immunocompromised patients
- Coordination with infection prevention and occupational health
Examples: Operating room renovation, hematology/oncology unit renovation (where transplant or chemotherapy patients are treated), intensive care unit renovation, renovation of spaces housing immunocompromised patient populations
Interim Life Safety Measures (ILSM)
ILSM Definition and Regulatory Requirement
During construction, healthcare facilities must maintain compliance with life safety standards despite temporary disruptions to building systems and configurations. ILSM are temporary measures that compensate for compromised life safety systems during construction activities.
Key ILSM Components
Fire Safety During Construction
Construction projects frequently compromise fire safety systems. ILSM must address:
- Fire detection and alarm systems: If permanent systems are disabled, temporary portable detection or enhanced staffing for fire watch duties
- Fire suppression capacity: Portable fire extinguishers positioned throughout construction area; if sprinklers are disabled, enhanced fire watch or temporary sprinkler systems
- Emergency egress: Temporary pathways maintained that provide equivalent safety to permanent exits; signage and lighting for temporary routes
- Construction material fire load: Combustible materials storage and management; daily housekeeping to prevent fire fuel accumulation
- Hot work permit program: If grinding, cutting, or welding occurs, formal hot work permits and continuous fire watch during and after hot work activities
Smoke and Odor Control
Construction generates dust, fumes, and odors that can spread to patient care areas:
- Air curtains or negative pressure systems at barrier boundaries
- HEPA filtration of exhausted air
- Carbon filtration for odor control in adjacent areas
- Regular cleaning of HVAC filters and ductwork
- Temporary ductwork isolation when permanent HVAC is compromised
Utility System Protection
Construction can damage or compromise critical utility systems:
- Medical gas systems: Line location verification before trenching/excavation; pressure monitoring; inspection protocols
- Electrical systems: Arc flash assessments; temporary distribution for construction; protection of critical circuits
- Water systems: Backflow prevention devices; isolation of construction water from patient care supplies
- Emergency power: Verification that generator capacity remains adequate; fuel supply monitoring; load testing schedules
Temporary Barriers and Enclosures
Physical containment of construction is essential:
- Floor-to-ceiling dust barriers (6-mil polyethylene minimum)
- Sealed seams and overlapped joints to prevent dust migration
- Access control: restricted entry points with sign-in/sign-out procedures
- Vestibule or airlock configuration where negative pressure control is required
- Visual inspection protocols to verify barrier integrity
ILSM Documentation and Inspection
Effective ILSM requires rigorous documentation and oversight:
- ILSM plan development: Documented plan addressing all life safety impacts; approved by facility administration, infection prevention, and occupational health
- Daily inspection logs: Construction supervisor verifies ILSM implementation daily; records maintained for compliance documentation
- Regulatory inspections: Health department and/or state building officials may conduct inspections; facilities must be prepared to demonstrate ILSM compliance
- Incident reporting: Any ILSM failures (barrier breaches, air pressure loss, system failures) must be documented and addressed immediately
- Training documentation: All construction personnel must be trained on safety requirements; training records maintained
Construction Planning and Coordination
Pre-Construction Phase Activities
Project Definition and Risk Identification
- Clinical and operational impact assessment
- ICRA assessment (documented in ICRA matrix)
- ILSM development and approval
- Infection prevention and occupational health coordination meeting
- Utility impact analysis (electrical loads, water usage, air flow impacts)
- Schedule and phasing analysis to minimize clinical disruption
Contractor Selection and Requirements
Healthcare construction requires specialized contractor expertise:
- Contractor qualifications: Experience with healthcare projects, understanding of infection control requirements, familiarity with life safety standards
- Infection control training requirement: All construction personnel receive orientation to infection prevention protocols, ILSM requirements, and housekeeping expectations
- Safety certifications: OSHA compliance; workers’ compensation insurance; background checks where required
- Performance standards: Contract specifications for dust control, debris management, work hours, and site cleanliness
- Compliance incentives: Financial incentives/penalties for meeting/exceeding environmental control performance
During-Construction Phase Management
Daily Operations and Oversight
- Construction supervisor: On-site daily; responsible for ILSM compliance, worker safety, and site management
- Facility liaison: Hospital staff member coordinating with construction team; troubleshooting issues; communicating with clinical departments
- Infection prevention rounds: Weekly or more frequent visits to assess barrier integrity, dust control, and HVAC impacts
- Air pressure monitoring: For Category 2 and 3 projects, continuous or daily monitoring with documentation
- Patient and staff communication: Regular updates about construction progress, anticipated disruptions, and precautions being taken
Utility Management During Construction
Construction often requires temporary disruption of utilities that support patient care:
- Advance notification: Clinical departments notified of outages; patients requiring affected services relocated as necessary
- Backup systems: Temporary utilities provided if permanent systems are disrupted (temporary HVAC, portable generators, temporary water systems)
- System restoration verification: Testing and validation that utilities function correctly when permanent systems return to service
Regulatory Compliance and Accreditation Standards
FGI Guidelines for Healthcare Facility Design and Construction
The FGI Guidelines provide comprehensive standards that inform construction planning:
- Infection prevention design standards: HVAC requirements, isolation room specifications, cleaning accessibility, material durability
- Life safety requirements: Exit placement, fire separation requirements, emergency system specifications
- Equipment and infrastructure standards: Medical gas systems, utility capacity, technology infrastructure requirements
ASHRAE 170: Ventilation of Health Care Facilities
ASHRAE 170 provides detailed ventilation standards critical during construction planning:
- Air change rates: Specific requirements for different room types (ORs require higher air change rates than general patient rooms)
- Pressure relationships: Operating rooms and isolation rooms must maintain positive pressure; certain support areas require negative pressure
- Filtration requirements: HEPA filtration requirements for sensitive areas
- Duct cleaning and commissioning: After construction, HVAC systems must be cleaned and commissioned to verify performance
NFPA 101 Life Safety Code
NFPA 101 addresses construction sequencing and temporary conditions:
- Temporary partitions: Must meet fire rating requirements; cannot reduce egress capacity below code minimum
- Emergency lighting: Temporary routes require adequate lighting; battery backup systems needed during power transitions
- Sprinkler system maintenance: Temporary disconnection of sprinklers in construction areas requires compensating fire safety measures
Post-Construction Commissioning and Validation
Functional Performance Testing
Upon construction completion, systems must be tested to verify compliance with design specifications:
- HVAC commissioning: Air flow verification, pressure relationship testing, duct leakage testing, filter performance verification
- Medical gas system testing: Pressure verification, flow testing, cross-contamination testing per CMS requirements
- Electrical system testing: Circuit verification, grounding testing, emergency system load testing
- Fire safety system testing: Alarm system activation, suppression system activation, emergency egress lighting verification
- Cleaning and decontamination: Post-construction cleaning per infection prevention protocols; verification of cleanliness before occupancy
Infection Prevention Sign-Off
Infection prevention staff must approve spaces for occupancy:
- Visual inspection for cleanliness and proper construction completion
- Verification that HVAC, utility systems, and other infrastructure meet design specifications
- Confirmation that environmental controls support intended clinical function
- Review of any modifications or deviations from original ICRA plan
Frequently Asked Questions
A: Joint Commission requires ICRA for any construction or major renovation. Even minor work may trigger ICRA requirements if it involves occupied patient care areas or could generate dust/debris. The ICRA process itself is brief for truly minimal-risk projects, but documented risk assessment is required. When in doubt, conduct ICRA—documentation demonstrates compliance and risk-based decision-making.
A: Immediately halt construction activities in the affected area. Assess the extent and duration of the breach. Notify infection prevention and clinical leadership. Depending on severity and duration, may require: temporary barrier repair, enhanced cleaning of adjacent areas, increased air monitoring, or temporary relocation of immunocompromised patients. Document the incident, root cause, and corrective actions. Review ILSM to prevent recurrence.
A: Medical gas line work requires certified medical gas installers per CMS regulations. Before work begins: verify exact line location (may require ultrasound or X-ray), ensure appropriate shutoff procedures, plan alternative gas supplies if needed, isolate the affected area, perform line integrity testing after relocation, and conduct a complete medical gas system survey per CMS requirements before returning to service. Documentation of all work and testing is required.
A: Category determination is based on the location of construction relative to patient care, the patient population’s vulnerability, and the risk of airborne transmission. Category 1 is non-patient care areas; Category 2 is areas adjacent to patient care or with vulnerable populations; Category 3 is immunocompromised patient areas or high-risk procedures (ORs). The ICRA team reviews project scope, patient population, construction methods, and facility layout to assign appropriate category and required controls.
A: Temporary HVAC systems can be rented or installed to maintain air quality during permanent system disruption. Portable air handling units with HEPA filtration can maintain negative or positive pressure in construction zones or adjacent clinical areas. The construction plan should identify critical HVAC support areas and arrange for temporary systems if permanent systems are unavailable during construction. Coordinate timing to minimize impact on patient care operations.