; and (B) is in compliance with ISO 9001:2015 of the International Organization for Standardization. (b) Covered components A frontline operational component referred to in subsection (a) is any of the following: (1) U.S. Customs and Border Protection. (2) U.S. Immigration and Customs Enforcement. (3) The Transportation Security Administration. (4) The Coast Guard. (5) The Secret Service. (c) Covered items An item referred to in subsection (a) is any of the following: (1) Body armor components intended to provide ballistic protection for an individual, consisting of one or more of the following: (A) Soft ballistic panels. (B) Hard ballistic plates. (C) Concealed armor carriers worn under the uniform. (D) External armor carriers worn over the uniform. (2) Helmets that provide ballistic protection and other head protection and components. (3) Protective eyewear. (4) Rain gear, cold weather gear, other environmental and flame-resistant clothing. (5) Footwear. (6) Uniforms. (7) Bags and packs. (8) Holsters and tactical pouches. (9) Patches, insignia, and embellishments. (10) Respiratory protective masks. (11) Chemical, biological, radiological, and nuclear protective gear. (12) Hearing protection equipment. (13) Any other critical safety item as determined appropriate by the Secretary of Homeland Security. (d) Maximum uniform allowance for certain personnel (1) In general Except as provided in paragraph (2)— (A) the maximum uniform allowance set forth in section 591.103 of title 5, Code of Federal Regulations, shall not apply to an agent of any frontline operational components described in subsection (b)