2nd Category: Investigation:
o Off-Site Investigation: A carrier is required to submit documents to FMCSA or a State partner. These documents are used to evaluate the safety problems identified through the SMS and to determine their root causes. Types of documents requested may include third party documents such as toll receipts, border crossing records, or drug testing records. The goal is to identify issues responsible for poor safety performance. If the carrier does not submit requested documents they may be subject to an on-site investigation or to subpoena records (see below).
o On-Site Focused Investigation: The purpose of this intervention is to evaluate the safety problems identified through the SMS and their root causes. An on-site focused investigation may be selected when deficiencies in two or less BASICs exist. "Focused" on-site investigations target specific problem areas (for example, maintenance records), while "comprehensive" on-site investigations address all aspects of the carrier’s operation.
o On-Site Comprehensive Investigation: This intervention is similar to a CR and takes place at the carrier’s place of business. It is used when the carrier exhibits broad and complex safety problems through continually deficient BASICs, worsening multiple BASICs (three or more), or a fatal crash or complaint.
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