Documenting local equivelant

Hi, in Hungary we also have more stringent requirements. Q1: no the LEED requirements are the same ( Ashrae 62.1) Q2: no, you should use the Calculator, and complete according to your design Q3: no, see answer above. Hope this helps!

We must comply with the more stringent local code, regardless what LEED requires. So this means that we can easily fulfill the ASHRAE 62.1 requirements, because our fresh air rates are always higher.

I'd urge you to be certain before filling out a local equivalent that you confirm all aspects of local code are more stringent. Does local code also require a certain exhaust rate, air flow monitoring, etc. If you indicate local equivalent, the review team may wish to know more about that code and compare in a pre or post submission call. For example, New York City requires a certain exhaust rate that is equal or higher to ASHRAE in most spaces. However in residences, ASHRAE requires Kitchen and bathrooms to be exhausted- which turned out to be more stringent than local code. Agree therefore with Zsuzsanna that the easiest pathway would be to use the ASHRAE calculator form template from LEED, but input your design rates. This should raise the fewest questions.

How about a situation where a building occupancy is covered by a code completey different than 62.1 and the total OA required for the building are higher than 62.1 values? We are working on a mental health facility with resident patients where "patient rooms" (although they practically are like dorms and not a hospital patient room) are goverened by healthcare code. The LEED reviewer is requesting us adjusting the baseline OA CFM values for these spaces, which are the majority of program expect support and circulation, to 62.1 min OA values which are substantially lower than design valuues. What would be the justification for that?