Huàfēn qīngchu liǎng ge bùmén de quán jiè hěn zhòngyào.
Clearly delineating the jurisdictional bounds between the two departments is important.
Tips
register
Formal / legal-administrative register. 权 (quán) = power/right + 界 (jiè) = boundary. Compare with 权限 (quánxiàn, 'authority limits' — much more common in everyday and tech contexts, e.g. 用户权限 user permissions) and 职权 (zhíquán, 'powers of office').