final authority

See: arbiter
References in classic literature ?
But with Penfentenyou behind him he had worked; for he told us that Lord Lundie--the Law Lord was the final authority on the legal and constitutional aspects of the Great Idea, and to him it must be referred.
The Board retains final authority with respect to all Services related decisions.
NDMC officials said the final authority on designating a road in the area rests with the civic body, and no further statutory clearance is required from any quarter.
Ban's office has final authority to publish and edit the report.
A Pew Research Center survey released Monday found 62 percent of the public believes Congress, not President Obama, should have final authority over approving a nuclear agreement with Iran.
More often than not, these grievances languish in the Director General Compensation and Benefits for years at the Initial Authority level, after which, many are forced to be dealt with at the Final Authority level without any concrete remedial action being taken.
Sources said the final authority will remain with Maulana Fazlur Rehman in order to avoid any groupings in the party.
State boards of accountancy have final authority on the acceptance of individual courses for CPE credit.
Under the collegium system, the government has no say in the appointment of judges, as the collegium is the final authority.
The school principal is the final authority on which students receive awards and determines the number of qualifying students based on eligibility and selection requirements.
Stratford District Council will be the final authority to join on April 1 and will feature alongside other agencies including Coventry City Council, Warwickshire County Council, North Warwickshire Borough Council, Nuneaton and Bedworth Borough Council and Rugby Borough Council.
Together, the Governing Board and Executive Committee are the main decision-making body to which all other CSG committees, task forces, regions, affiliates and staff report, and also give final authority to CSG's policy positions and resolutions.