What is the maximum deviation allowed from the projection of carbon emissions?
If that is referring to the projection within the monitoring plan you can deviate as much as needed. The only purpose for having a projection within the monitoring plan is to establish which side of the materiality levels you come and which side of the uncertainty levels you come. If you deviate across those borders, then you will need to resubmit your monitoring plan and have it amended but that is the only implication, it really doesn’t matter if your projected emissions differ 100% or 1,000%.