We encourage you to meet with the DSP student, if you have any concerns regarding the LOA, whether because you require more clarity, or whether you have concerns about the LOA possibly conflicting with the academic integrity of your course requirements. You are not obligated to fundamentally alter your course, nor are accommodations retroactive.
Please contact the DSP specialist on the LOA, to discuss any logistical, legal, or other concerns you may have. If you are concerned that the recommendation is not appropriate for your particular class, then you should contact the DSP Specialist that signed the letter. The DSP Advisors know that their recommendations can occasionally, inadvertently compromise the purposes or standards of a class, and are ready to discuss such concerns with you.
The goal is to find a way to accommodate the student in a manner that does not fundamentally alter the essential performance standards of your class. If there is an unresolved disagreement after a good-faith effort, there is a process for pursuing the matter; see the Berkeley Campus Policy for Accommodating the Academic Needs of Students with Disabilities. Note, however, that the DSP Specialists' recommendations must be followed unless they are overturned or modified.