High value debt listed entities must meet Chapter IV corporate governance requirements within six months of crossing the debt threshold. Regulation 15 designates entities with specified securities or non-convertible debt securities above the prescribed outstanding-value threshold as high value debt listed entities, requiring them to comply with Chapter IV corporate governance provisions within six months of crossing the threshold, with initial comply or explain treatment until the transition date and mandatory compliance thereafter. Exemptions apply to small capital/net-worth entities and staged applicability to SME Exchange listings; insolvency processes suspend certain governance obligations with the interim/resolution professional assuming board and committee roles and requiring post-plan compliance within three months.