Compliance Audits

Compliance audits involve periodic internal and external assessments to verify adherence to legal, regulatory and voluntary obligations (ISO, 2015). This may include, among others, scheduled audits against approvals and licenses, site inspections of operational activities, independent audits, follow up actions to address nonconformities, and contractor compliance audits.

For, compliance audits can serve as a critical assurance mechanism, providing independent verification that regulatory requirements are being met and identifying gaps before they result in enforcement action or environmental incidents. Audit programs can be scaled to organizational capacity, ranging from simple internal checklists for smaller ports to comprehensive audit programs aligned with ISO 14001 or PEMSEA PSHEM certification requirements (PEMSEA, 2022).

Compliance auditing provides structured, evidence-based verification that a port is meeting its legal, regulatory and voluntary obligations. Audits may be conducted internally (by trained port staff or dedicated compliance teams) or externally (by independent third-party auditors, certifying bodies, or regulatory inspectors). The frequency and scope of audits are typically determined by the nature and risk profile of the obligations, with higher risk activities subject to more frequent verification.

Internal audits, as required by ISO 14001:2015 (Clause 9.2), are conducted at planned intervals to determine whether the environmental management system conforms to the organization's own requirements and to the requirements of the standard, and is effectively implemented and maintained; legal compliance is evaluated separately under Clause 9.1.2. Internal auditors should be objective and impartial, and audit programs should take into account the environmental importance of the processes concerned, changes affecting the organization and the results of previous audits. Findings from internal audits are documented, communicated to relevant management, and tracked through to closure of corrective actions (ISO, 2015).

For specific regulatory approvals, such as planning approval, where there are a range of compliance conditions to be met throughout the various stages of development, a port may choose to establish a project specific compliance register to support ease of tracking its compliance obligations.

External audits may take several forms: third party certification audits, regulatory inspections conducted by government authorities, and independent environmental audits commissioned by the port authority to assess specific compliance areas. The EcoPorts Port Environmental Review System (PERS) is a port-specific environmental management standard whose implementation is independently reviewed by LRQA Nederland B.V.; when accessed in September 2026, the EcoPorts website showed 26 PERS-certified ports among 84 member ports in 24 countries (ESPO, n.d.).

In the ASEAN context, the PEMSEA PSHEM certification process also includes audit requirements.). The PSHEM audit framework assesses compliance with safety, health and environmental management requirements, including legal requirements, providing a regionally tailored approach to compliance verification (PEMSEA, 2012).

For smaller DMC ports with limited audit capacity, simple compliance checklists and scheduled self-inspections can provide a practical starting point. As institutional capacity develops, ports can progressively introduce more formal audit programs, engage external auditors for periodic assessments, and work toward certification under ISO 14001 or another relevant program. The key principle is that some form of systematic compliance verification, however basic, is preferable to ad hoc or reactive approaches.