In Further Explanation, Determining Major Energy End Uses, before the paragraph starting with “Choosing what equipment and components to group”, add the following paragraph:

It is acceptable to exclude a small portion of the total loads from each end-use category. Not more than 10% of the total connected load of any of the required end-uses is permitted to be excluded from that end-use advanced metering data collection. Not more than 10% of the total connected load of any of the end-uses where metering is required is permitted to consist of loads not part of that end-use.