; (3) ensure that participants receive a tangible and measurable benefit for participation; and (4) carry out other duties and powers prescribed by the Executive Assistant Commissioner. 212. Eligible entities and notice of benefits (a) Eligible entities Importers, exporters, customs brokers, forwarders, air, sea, and land carriers, contract logistics providers, and other entities in the international supply chain and intermodal transportation system are eligible to apply for participation in the C–TPAT program. (b) Tiered participation (1) In general Applicants may be eligible to participate as Tier 1 or Tier 2 participants. (2) Importers Importers may be eligible to participate as Tier 3 participants. (3) Extension The Executive Assistant Commissioner may, in his or her discretion, extend Tier 3 participation to other entity types, if appropriate. (c) Notice of benefits (1) In general The Commissioner of U.S. Customs and Border Protection shall publish, on the U.S. Customs and Border Protection website or through other appropriate online publication, information about benefits to C–TPAT program participants. (2) Changes The Commissioner of U.S. Customs and Border Protection shall publish, on the U.S. Customs and Border Protection website or through other appropriate online publication, notice of any changes to benefits to C–TPAT program participants not later than 30 days before any such changes take effect. 213. Participation eligibility (a) In general The Executive Assistant Commissioner shall review all documentation submitted by an applicant pursuant to subsection (b)(2), conduct a background investigation of such applicant, and vet such applicant. (b) General requirements To be eligible for participation in the C–TPAT program, an entity shall, at a minimum— (1) have a designated company employee authorized to bind such entity that will serve as the primary cargo security officer responsible for participation of such entity in the C–TPAT program