This Decision enacts the Executive Bylaws, covering Articles 1 to 48, which detail procedural and compliance obligations. Based on the provided text, Article 11 mandates that every incorporated body must register with the Tax Administration within 30 days of starting its activity or signing a contract. The registration must include key details such as the body's name, address, and agent information. Furthermore, entities are required to notify the Tax Administration of any changes affecting their tax liabilities or of the cessation of their activities, both within a 30-day period from the event date.