How much does the MARN environmental license cost and which category applies to a well or plant?

The Environmental Assessment, Control and Follow-up Regulation (AG 137-2016, as amended) requires an environmental form or diagnostic according to the project's category,… and the municipality asks for the approved instrument before licensing the drilling. According to the official catalog of procedures, a category C environmental license costs Q50 per year (Q50 to Q250 for 1-5 years; resolution in 3-10 days) and category CR instruments, predictive and corrective alike, cost Q50 (5 days). Categories A/B1/B2 cost more: the published range runs 'from Q50.00 up to Q35,000.00' (La Hora, Dec 1, 2022).