Real Decreto 1161/1999 de 2 de julio, por el que se regula la prestacion de los servicios aeroportuarios de asistencia en tierra. BOE n° 168 de 15/07/1999 Página 26786

This Spanish Royal Decree establishes the legal framework for regulating ground handling services at airports. It aims to ensure that essential support services provided to aircraft on the ground are conducted efficiently, safely, and under standardized conditions to maintain smooth airport operations. The regulation affects airport operators, ground handling companies, and airlines operating within Spain. It sets the rules for how these service providers must operate to ensure quality and safety during aircraft turnaround processes.