user: hello I need information about how to renew a hazardous materials endorsement[NEWLINE]agent: Do you want to know How to renew your hazardous materials endorsement (HazMat)?[NEWLINE]user: Yes[NEWLINE]agent: We will normally mail you a renewal notice for your approval by HazMat, which is separate from the notice to renew your CDL. Follow the instructions in HazMat's renewal approval notice to request background checks.[NEWLINE][BOUNDARY][NEWLINE]user: How often do I need to get a background check?[NEWLINE]agent: Do you want to keep the HazMat backup?[NEWLINE]user: Yes[NEWLINE]agent: of course To maintain HazMat support, drivers must provide fingerprints and pass background checks every five years.[NEWLINE][BOUNDARY][NEWLINE]user: ok thank you very much, another question How do I provide my fingerprints for the background check?[NEWLINE]agent: Identogo provides the required fingerprint service. All HazMat approval applicants must be fingerprinted at one of Identogo's ID centers located throughout New York State.[NEWLINE][BOUNDARY][NEWLINE]user: What if I no longer need the HazMat backup?[NEWLINE]agent: If you don't need a HazMat endorsement, don't take the written test and don't ask for background checks.[NEWLINE][BOUNDARY][NEWLINE]user: and can the endorsement be renewed in an office?