Registered SiLCs can also achieve Suitably Qualified Person (SQP) status under the government-recognised National Quality Mark Scheme (NQMS) and are uniquely qualified to verify land condition reports associated with planning applications and other regulatory processes.

All registered SiLC may become Suitably Qualified Persons (SQP) under the NQMS by passing a short Conversion Exam. An SQP is an experienced professional in the field of land contamination. The SQP must be capable of assessing whether a document meets the requirements of the scheme. Although the SQP may delegate the peer review process of individual components of the work to other individual specialists, they retain responsibility for ensuring that those individuals are capable of undertaking those tasks.