A block visa in Saudi Arabia is an allocation of work visas granted to a company by the Ministry of Human Resources. The number of visas allocated depends on the company's Nitaqat compliance level, workforce size and labor market needs. Companies in the Platinum or Green Nitaqat bands receive larger allocations. Block visa management requires precise coordination across Qiwa, Absher and the Ministry of Human Resources platforms. Errors in profession codes or failure to maintain Nitaqat compliance can freeze block visa quotas causing serious operational disruption.