I agree with debodine. As both a DER and DAR, I don't interpret the regulations, I read them, and evaluate the data presented by the applicant. If my evaluation shows that the applicant has shown compliance to the regulation, then and only then can I sign off on an 8110-3. If there is some ambiguity within the regulation, further evaluation is necessary with consultation of Advisory Circulars, FAA Orders, Letters of Interpretation, or consultation with my FAA advisor. The words have meaning, don't read more, or less into what is written. For newer regulations, don't forget that the Federal Register will contain a lot of information regarding what the FAA thinks the proposed and final rules mean. As stated, the older CARs and related CAMs can provide insight. Just be careful that the intent of the regulation didn't change form CAR to 14 CFR. Most were simply recodified, but several were changed, or have been changed since ~1964 when Part 25 was codified.