It seems that the least of the activities that can impact the environment is that of services, however, it has been a great experience during the last 30 years to be involved with service companies, both those related to the environmental sector and those that its natural activity is the service, guiding, advising, managing and interacting with the authorities within this branch of economic activity, it has always been of great importance and learning to obtain the legal certainty that is necessary for the adequate provision of the service.