According to Marke Gibson, head of the FAA's UAS division, the "operating from or on" is referring to the pilot. I.e. the pilot can't be standing on NPS land, a

According to Marke Gibson, head of the FAA's UAS division, the "operating from or on" is referring to the pilot. I.e. the pilot can't be standing on NPS land, and cannot launch or land a drone on NPS land. This is a workaround that NPS came up with, and which is being used my most municipalities when they are banning drone operations. Source: Interdrone conference presentation by Marke Gibson that I attended 2 weeks ago.