### Question
How does COMMERCIAL define tamper resistant?


### Answer
Under *49 U.S.C. § 31137*, **tamper resistant** is defined as:

> resistant to allowing any individual to cause an electronic device to record the incorrect date, time, and location for changes to on-duty driving status of a commercial motor vehicle operator under part 395 of title 49, Code of Federal Regulations, or to subsequently alter the record created by that device

#### Citation:
  - *49 U.S.C. § 31137*
  - Heading: **SUBTITLE VI-MOTOR VEHICLE AND DRIVER PROGRAMS > PART B-COMMERCIAL > CHAPTER 311-COMMERCIAL MOTOR VEHICLE SAFETY > SUBCHAPTER III-SAFETY REGULATION**

