GPM • GPM-b
The GPM-b certification validates foundational knowledge of sustainable project management principles, the P5 Standard, and Green Project Management® methodology. It demonstrates a professional's ability to integrate sustainability practices across the full project lifecycle.
Questions
841
Duration
90 minutes (RPL) or 180 minutes (standard)
Passing Score
70% in both categories
Difficulty
FoundationalLast Updated
Feb 2026
The Certified Green Project Manager – Basic (GPM-b™) is a globally recognized, knowledge-based credential issued by GPM (Green Project Management Global), the originator of the P5 Standard for Sustainability in Project Management. It validates a professional's foundational understanding of how to integrate sustainability principles—spanning People, Planet, Prosperity, Products, and Processes—across the full project lifecycle, from initiation through closure. The certification is built directly on two authoritative references: the P5 Standard for Sustainability in Project Management and the GPM Reference Guide (Sustainable Project Management), ensuring candidates can assess, measure, and report on environmental and social project impacts in alignment with the UN Sustainable Development Goals (SDGs).
The GPM-b is co-offered through the Project Management Institute (PMI), extending its global reach and recognition. It is governed by the GPM Certification Board and conforms to ISO 17024, the international standard for personnel certification, ensuring rigor, fairness, and credibility. Valid for five years with no ongoing maintenance requirements, it serves as the entry point into GPM's three-tier certification ladder: GPM-b (knowledge), GPM-s (performance), and GPM-m (competence).
The GPM-b is designed for project professionals at any career stage who want to demonstrate foundational competency in sustainable project management. It is well suited for project managers, project coordinators, sustainability officers, program analysts, ESG reporting specialists, and consultants who are responsible for delivering projects with measurable environmental and social outcomes. Because no formal prerequisites are required for the standard exam pathway, it is equally accessible to early-career practitioners and experienced professionals making a sustainability-focused pivot.
The certification is particularly relevant for professionals working in industries under increasing ESG disclosure pressure—including construction, infrastructure, IT, energy, manufacturing, and financial services—where the ability to embed sustainability into project delivery is becoming a baseline expectation rather than a differentiator.
There are no mandatory prerequisites for the standard GPM-b exam pathway. Candidates from any background may register and sit the full 150-question, 3-hour examination without prior project management credentials. This makes it accessible as a foundational credential for those entering the sustainability or project management field.
Candidates who hold qualifying credentials are eligible for the Recognition of Prior Learning (RPL) pathway, which permits them to sit a shorter 75-question, 90-minute exam. Qualifying RPL credentials include PMI certifications (CAPM, PMP, PgMP), PRINCE2 (Foundation or Practitioner), IPMA Levels A through D, the APM PMQ, ChPP, relevant master's degrees in Project Management, Sustainability, Business Administration (MBA), or Engineering with a project management concentration, and other credentials subject to written GPM approval. Candidates uncertain about RPL eligibility should contact GPM directly at Certification@gpm.org.
The GPM-b exam is available in two formats depending on RPL eligibility. The standard exam consists of 150 multiple-choice questions to be completed within 3 hours (180 minutes). The RPL short-form exam consists of 75 multiple-choice questions to be completed within 90 minutes. Both formats are delivered as closed-book assessments.
In both formats, questions are split equally between two scored categories: 50% on Sustainability Methods (drawn from the P5 Standard and GPM Reference Guide, Chapters 1–4) and 50% on Delivery Methods (drawn from GPM Reference Guide, Chapters 5–12). Candidates must achieve a minimum score of 70% in both categories independently to pass—scoring above 70% overall but below 70% in one category is not sufficient for certification. Upon passing, the credential is valid for five years, after which candidates must retake the exam to renew.
Earning the GPM-b positions professionals to meet surging organizational demand for project leaders who can operationalize ESG commitments and sustainability strategies at the project level. As regulatory ESG disclosure requirements expand across the EU, US, and other markets, employers in sectors such as infrastructure, energy, technology, and financial services are actively seeking practitioners who can integrate environmental and social impact measurement into project delivery—skills the GPM-b explicitly validates. The certification complements existing credentials such as the PMP or PRINCE2 by adding a sustainability dimension that neither exam covers, making it a high-value addition for certified project managers looking to differentiate themselves.
The GPM-b opens pathways to roles including Sustainability Project Manager, ESG Program Analyst, Green Infrastructure Project Lead, and Corporate Sustainability Consultant. Because it is co-offered through PMI and recognized across GPM's network of over 145 countries, it carries international credibility. It also serves as the foundation for advancement to the GPM-s (performance-level) and GPM-m (competence-level) credentials, which require demonstrated field application and extensive experience respectively, enabling a clear long-term professional development trajectory in sustainable project management.
5 sample questions with correct answers and explanations. Start a practice session to test yourself across all 841 questions.
1. The Ellen MacArthur Foundation defines circular economy based on three core principles. Which principle emphasizes returning biological materials to earth and restoring ecosystems? (Select one!)
Explanation
Regenerate nature is the third core principle of circular economy as defined by the Ellen MacArthur Foundation, emphasizing returning biological materials to earth through composting and anaerobic digestion while actively restoring ecosystems. The three principles are: eliminate waste and pollution by designing it out from the beginning, circulate products and materials at highest value through maintenance, reuse, refurbishment, remanufacturing and recycling, and regenerate nature. The Butterfly Diagram illustrates two cycles: technical cycles keeping materials in use through various strategies, and biological cycles returning organic materials to earth. This contrasts with linear take-make-waste economy where finite resources are depleted and value destroyed at end-of-life. Circular economy represents a systems solution framework tackling climate change, biodiversity loss, waste, and pollution, with historical contributions from Walter Stahel, Michael Braungart, and William McDonough.
2. An infrastructure project develops the Material Topics Management Table during PRiSM Design phase. The team translates material issues identified during Discovery into specific commitments with assigned accountability and KPIs. Which component is the Material Topics Management Table NOT intended to include? (Select one!)
Explanation
The Material Topics Management Table translates material issues into commitments, KPIs, and accountabilities during Design phase. It focuses on sustainability performance management, not financial audit procedures. Financial audits relate to governance and compliance but are not core components of the Material Topics Management Table. The table serves as the bridge between materiality assessment results from Discovery and actionable sustainability management during Delivery, documenting what will be managed, how it will be measured, and who is responsible.
3. A mining company conducts Life Cycle Assessment for a new extraction project. The assessment covers raw material extraction through processing and transport to factory gates but excludes product use and disposal. Which system boundary approach is being used? (Select one!)
Explanation
Cradle-to-gate system boundaries cover raw material extraction, processing, and manufacturing through the point where products leave the factory gates, explicitly excluding use phase and end-of-life disposal. Cradle-to-grave boundaries extend through the entire lifecycle including consumer use and final disposal. Cradle-to-cradle represents closed-loop systems where materials are recycled or returned to nature at end-of-life, maintaining value through biological or technical cycles. Gate-to-grave would cover only distribution, use, and disposal phases, excluding upstream manufacturing. System boundary selection significantly affects LCA results and must be clearly defined in the Goal and Scope Definition phase per ISO 14040. The functional unit provides reference for comparing inputs and outputs within the chosen boundaries, such as 1000 wash cycles for washing machine assessment.
4. A pharmaceutical project applies the PRiSM Discovery phase. The project manager must build the Impact Register and apply the Materiality Test. What is the primary purpose of the Materiality Test in this phase? (Select one!)
Explanation
The Materiality Test in PRiSM Discovery phase identifies which sustainability issues are most significant to stakeholders and have the greatest potential impact on the project and its outcomes. These material issues are then translated into commitments, KPIs, and accountabilities in the Design phase. Calculating exact costs is part of financial analysis, not materiality assessment. Assigning responsibilities happens in Design phase. Compliance verification is part of ongoing monitoring, not the materiality determination process.
5. An organization evaluates its environmental management system against ISO 14001 requirements using the Plan-Do-Check-Act cycle. During the Check phase, internal auditors identify that operational controls for hazardous waste storage do not comply with documented procedures. Which ISO 14001 clauses govern the required response to this finding? (Select one!)
Explanation
ISO 14001 uses the PDCA cycle where the Act phase (Clauses 10.1-10.3) addresses nonconformities and drives continual improvement. When operational controls do not comply with documented procedures, this is a nonconformity requiring Clause 10.2 Nonconformity and Corrective Action to identify root causes, take corrective action, and evaluate effectiveness. Clause 10.3 Continual Improvement ensures the organization learns from the nonconformity to enhance the EMS. While Clause 7.5 and 8.1 may be updated as part of corrective action, they do not govern the response to identified nonconformities. Clauses 9.1 and 9.2 are in the Check phase and identified the issue but do not govern the response. Clause 6.1 is in the Plan phase and reclassifying waste does not address the nonconformity of failing to follow procedures.
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