Article 39 of the Law on the National Coat of Arms, Flag and Anthem states: “Queda estrictamente prohibido alterar la letra o música del Himno Nacional” (It is strictly prohibited to alter the lyrics or music of the National Anthem). The same article forbids performing it, in whole or in part, in compositions or arrangements.
According to Expansión, Article 56 Quintus sets the sanctions for violations of the law. They include a fine of up to 10,000 times the Unidad de Medida y Actualización, the reference unit for fines, and arrest for up to 36 hours.