Price notes that accommodations systems in academia are often based in the assumption that access should be measurable and distributed by a person with authority. Because of this basis, accommodations systems are often driven by questions of cost, who deserves access, and punishment for not engaging with the system in ways deemed correct. Because of these theoretical bases, many accommodations systems require that students obtain biocertification - often through diagnosis paperwork or other medical forms - to prove that they are disabled enough to receive, in turn another form of biocertification, an official letter of accommodation.