(a) By a duly enacted ordinance or a resolution duly adopted pursuant to such authorizing ordinance of the council, including this title, explicitly waiving the tribe’s sovereign immunity from uncontested suit in any forum designated in the ordinance or resolution; provided, that such waiver shall not be general but shall be specific and limited as to duration, grantee, transaction, property or funds of the tribe subject to the waiver, court or other forum having jurisdiction, and applicable law; or

(b) By a tribal entity exercising authority expressly delegated to such entity in its charter or specifically by a duly enacted ordinance or a resolution duly adopted pursuant to such authorizing ordinance of the council; provided, that such waiver shall be made in strict conformity with the provisions of the charter, ordinance, or resolution governing such delegation.