In the definitions section of the standard, "Customer Specific Requirements" (CSRs) and "Customer Requirements" are listed separately. Of course, a "Customer Requirement" is specific to a customer, so the two terms appear to mean the same thing. Based on how CSR is used in the standard, it seems like a bad translation for "Customer-specific IATF Supplemental Requirement". The definition per the standard is "interpretations of or supplemental requirements linked to a specific clause of this standard". So, for example, if a customer has a quality manual that contains regular requirements and some requirements that they link to a specific clause, that would appear to be the line between CSRs vs. CRs. They all matter, but some are IATF linked. I have one customer in mind that has 40+ pages of requirements, then 5 pages of tables at the end that say "(customer)-specific IATF requirements" where they list the clause, what it says, and what they add. Many use a matrix to map CSRs to the standard and their own procedures to meet 4.3.2 and 188.8.131.52. Based on that difference in definition, should this matrix only include the CSRs? As in the table provided by the customer referenced above, and not their entire manual?