Mainstreaming Disaster Risk Reduction into Sector-Level Policy and Corporate HSE Systems: An Alignment with NEMA’s National Push

Nigeria has spent most of its disaster history reacting. The 2022 floods, which NEMA’s Director-General later put at 662 deaths and more than 2.4 million displaced people, showed how costly that habit has become, and the launch of the National Disaster Risk Reduction Strategy (2025–2030) and the NEMA Strategic Plan (2025–2029) signals a deliberate move toward prevention. Yet a national strategy only changes risk on the ground when ministries, regulators and companies rewrite what they do every day. This paper asks how disaster risk reduction (DRR) can be mainstreamed into sector-level policy and into corporate health, safety and environment (HSE) management systems in a way that aligns with NEMA’s push. Using a qualitative documentary analysis and framework synthesis, the study maps the four Sendai Framework priorities against the clause structure of ISO 45001, ISO 14001 and ISO 22301, and against the institutional mandates of six policy sectors. The analysis suggests that corporate HSE systems are strongest where they meet Sendai Priority 4 (preparedness and response) and weakest where they touch Priority 1 (understanding systemic risk) and Priority 3 (investment in resilience). At sector level, the entry points for DRR exist but are rarely written as enforceable expectations. The paper proposes a three-layer mainstreaming framework, an alignment matrix, a set of indicators, and a phased roadmap that gives NEMA, sector regulators and operators a common vocabulary. The argument is conceptual and policy-analytic; the ratings reported are the author’s documentary judgements intended for later validation by expert panel, not survey findings.