3.1 Scoping Review Protocol and Trade Policy Documentary Corpus
The methodological architecture of this study adopts a systematic scoping review protocol informed by PRISMA-ScR guidelines to synthesize trade policy documentation, supply chain dynamics, and regulatory convergence issues relevant to North American trade governance (2026). Because modern regional trade agreements integrate complex compliance mandates with domestic industrial policies, this scoping protocol facilitates a rigorous narrative and thematic synthesis of documentary evidence regarding regulatory stringency and supplier capability development (2026). To evaluate the institutional dimensions of trade oversight, the collected policy documents and legal frameworks are analyzed through an analytical model grounded in decentred and polycentric regulatory accountability (2010). In contemporary regulatory governance, accountability operates within ongoing institutional tensions, contested priorities, and multi-layered administrative configurations rather than through uniform hierarchical oversight (2010). Consequently, this qualitative methodology investigates how regulatory compliance mechanisms function across diverse jurisdictional levels, identifying the operational bottlenecks that arise when domestic suppliers must satisfy demanding rules of origin under the shadow of periodic treaty sunset reviews. The comparative institutional appraisal maps formal treaty requirements against domestic industrial capacities, examining how accountability standards shape technological upgrading pathways. Furthermore, the analytical procedure incorporates documentary triangulation to cross-examine public-sector oversight reports, multilateral legal texts, and industrial standard-setting guidelines. This iterative qualitative synthesis ensures that the assessment of regulatory review risks captures both transnational accountability structures and local supplier constraints without introducing unsupported empirical extrapolations. By establishing transparent coding categories and systematic review parameters, this methodological framework provides a robust foundation for assessing institutional risks and policy alignment in regional production networks.