AuditNetÂ® Audit-library::Internal-auditing-department-charters. The Internal Audit Charter establishes the departments position within the organization, authorizes the records that the auditor has access to, and defines the scope of internal auditing activities. It is important because it represents the contract between the internal auditing department and the organization.
When my front brake pads wore out at 23,000 miles, the dealer informed me that the rotors had to be replaced also, and showed me the wear on them. I had them replaced. Now, at 32,000 miles, my trusted local mechanic tells me the rear brake pads need replacing - AND the rotors! I have owned 5 cars before this one, and kept all into old age, but I have never needed to change rotors before.
I'm at 120k on the original front pads on my ES300, rears needed replacement at 80k. In contrast, our Suburban used them up every 30-40k. Your use, and wear, is in that average range of 20,000 to 50,000 miles to brake wear-out. Mail carriers measure their time, 'til they need new brake pads, in WEEKS, not miles.