Other things that may be excluded

I agree with your conclusion Marian - It doesn't seem logical to include products that are so 'process'-specific to your building's unique function, and for which the sustainability criteria identified in the rating system & reference guide are not relevant. I think you can probably exclude them in purchasing, although you may have to address them in waste. Also, I would note that you might consider fish food in light of the Sustainable Foods credit, which doesn't technically limit itself to food for human consumption!