At one time, the National Electrical Code (NEC) contained two Articles you won’t find as of the 2020 revision: Art. 280 (surge arrestors) and Art. 285 (transient voltage surge suppressors or TVSS).
The marking must comply with Sec. 110.21(B)(3). Note: Sec. 210.8 specifies requirements for GFCI protection for the receptacle outlets where the location warrants such protection. In addition, the ...