Can I use more than one reduction calculation method to estimate reductions?

In some cases you may need to use two or more reduction estimation methods because of the disparate nature of your various emission sources. To do this, you will need to define and specify the portion of the entity (i.e., “subentity”) to which each method will be applied. If you intend to use more than one method to calculate emission reductions, or intend to use different output measures for the Changes in Emissions Intensity method, your entity must be divided into two or more subentities. The methods used must cover all the entity’s emissions sources and must be clearly reported in the analysis of reductions. Technical Guidelines, 2.2.1 General Guidelines, §300.  more