Condition Based Maintenance Plus (CBM+) is the application and integration of appropriate processes, technologies, and knowledge-based capabilities to improve the reliability and maintenance effectiveness of Department of Defense (DoD) systems and components. It’s established by DoD Instruction 4151.22 “CBM+ for Materiel Maintenance”. At its core, CBM+ is maintenance performed based on evidence of need provided by Reliability Centered Maintenance (RCM) analysis and other enabling processes and technologies. CBM+ uses a systems engineering approach to collect data, enable analysis, and support the decision-making processes for system acquisition, sustainment, and operations. CBM+ falls under the umbrella of Total Life Cycle System Management (TLCSM). The goal of CBM+ is to perform maintenance only upon evidence of need. 
The Condition Based Maintenance Plus (CBM+) strategy: 
- Enhances maintenance efficiency and effectiveness and integrates all functional aspects of life cycle management processes, such as development, acquisition, distribution, supply chain management, and systems engineering.
- Establishes integrated, predictive maintenance approaches, which minimize unscheduled repairs, eliminate unnecessary maintenance, and employ the most cost-effective maintenance health management approaches.
- Implements an optimum mix of maintenance technologies (e.g., diagnostics and prognostics), RCM-based maintenance processes, and enablers (e.g., total asset visibility) within the integrated TLCSM framework.
- Enhances materiel availability by identifying the optimum opportunity to perform required maintenance, thereby increasing the number of assets in operational status.
- Improves materiel reliability through the disciplined analysis of failure data to develop modifications that will ensure equipment meets target performance standards within an operational context.
- Minimizes mean downtime by providing real-time maintenance information and accurate technical data to technicians and logisticians that will expedite repair and support processes and return equipment to operational status.
- Reduces ownership costs by eliminating unnecessary maintenance activities and accurately positioning required assets for an effective logistics footprint in support of warfighting requirements.
Condition Based Maintenance Plus (CBM+) Examples
- Hardware: system health monitoring and management using embedded sensors; integrated data bus ·
- Software: decision support and analysis capabilities both on and off equipment; appropriate use of diagnostics and prognostics; automated maintenance information generation and retrieval
- Design: open system architecture; integration of maintenance and logistics information systems; interface with operational systems; designing systems that require minimum maintenance; enabling maintenance decisions based on equipment condition
- Processes: RCM analysis; a balance of corrective, preventive, and predictive maintenance processes; trend-based reliability and process improvements; integrated information systems providing logistics system response; CPI; Serialized Item Management
- Communications: databases; off-board interactive communication links
- Tools: integrated electronic technical manuals (i.e., digitized data) (IETMs); automatic identification technology (AIT); item-unique identification; portable maintenance aids (PMAs); embedded, data-based, interactive training
- Functionality: low ambiguity fault detection, isolation, and prediction; optimized maintenance requirements and reduced logistics support footprints; configuration management and asset visibility.
Condition Based Maintenance Plus (CBM+) Implementation
The implementation of the CBM+ strategy in DoD maintenance organizations should not be construed as primarily the application of new methods and technologies. The basis for CBM+ is more precisely a focus on improving the business process of maintenance with the principal objective being improved operational performance as a result of increased maintenance effectiveness in terms of greater productivity, shorter maintenance cycles, increased quality of the process, and better use of resources. 
AcqLinks and References:
-  DoD Condition Based Maintenance Plus (CBM+) Guidebook
-  DoD Instruction 4145.22 “Condition Based Maintenance Plus for Materiel Maintenance” – 19 Jan 2018
- DoD Directive 4151.18 “Maintenance of Military Materiel” – 31 March 04
- Condition Based Maintenance Plus Fact Sheet