Portugal
Resolution of Council of Ministers 68/2005, establishes the National System for the Estimation of Emissions by Sources and Removals by Sinks and Air Pollutants (SNIERPA)
SNIERPA is composed of three technical elements: a quality assurance and quality control system; a methodological development programme; and an integrated IT system.
The Resolution defines the Institute for the Environment as the responsible entity for the inventory preparation and for its submission to the relevant international organizations. The Resolution also defines the duties, tasks, and responsibilities of all the entities engaged in estimating emissions. It also includes a procedure for the final approval of the inventory.