Drawings showing location of Daylight Sensors

Plans would not likely be required but a copy of the language in the sales agreement and and narrative describing how you did the modeling for it would be required.

Not really specific requirements, just describe what you modeled. Probably the only other parameter would be the effective daylit zone. For example, if the daylighting is coming from windows on one side of the space the effective daylighting zone is about 1.5 times the window head height. This is the only area where daylighting will be effective.

For the perscriptive method Compliant Floor Area CFA = bay width x 2*(Window H) so I think the 1.5 should be 2?

Prescriptive method for EQc8.1? If so our opinion is that method has major issues and we would not recommend using it. Our experience based on analysis and field measurements is that the 1.5 x window H is the effective daylit zone. Using 2 is a stretch as there are other factors which affect good daylighting (space reflectances, space configuration, contrast ratios, etc.). Reality is not as simple so it makes sense to er on the side of being conservative in a simplistic analysis. And in my experience most energy modeling software does pretty simplistic daylighting evaluations.

Yes. That is very true. Also, I recommend using DesignBuilder, which uses Radiance in its simulation for daylighting for the EQ8.1 credit, and can use energyplus for the daylighting used in conjuction with linear or step control for daylighing sensors for light power reduction. If using the appropriate "FullInteriorAndExteriorWithReflections" radiation mode, it is a fair approximation for modelling energy usage reductions due to daylighting measures (there are some restrictions when imploying this mode, such as non-convex zone definitions). TrnSys is also getting there, but is in my limited experience, not as user friendly.