Municipalities that do not have local police, or a body of vigilantes or have signed an agreement in application of article 12.1.fifth.c) of Law 10/1994, of 11 July, on the police of the Generalitat Mossos d 'Squadron, they can't install video surveillance cameras for the purpose of traffic control. Municipalities with a vigilante body may install video surveillance cameras for the purpose of controlling traffic limited to the functions assigned to vigilantes by their specific regulations. In the case of municipalities that have signed an agreement in application of article 12.1.c) of Law 10/1994, of 11 July, of the police of the Generalitat Mossos d'Esquadra of Catalonia, they can install video surveillance cameras for traffic control in the terms established by the said agreement. The installation and use of surveillance cameras for the control, regulation, surveillance and discipline of traffic, must comply with the provisions of the eighth additional provision of Organic Law 4/1997, of 4 August, for which regulates the use of video cameras by the Security Forces and Corps in public places, deployed in Catalonia by the second additional provision of Decree 134/1999, of 18 May, regulating video surveillance by the police of the Generalitat and the local police of Catalonia, as well as the RGPD and the LOPDGDD and Instruction 1/2009, especially the aspects analyzed in the legal basis VI of this opinion.