Required marks must be readily visible and legible, withstand open weather without substantial loss of effectiveness, sit on a contrasting background on the external surface, be kept away from other marks that could reduce their effectiveness, and should meet the letter sizes in Table 5.2. Salvage packagings, large salvage packagings and pressure receptacles used for salvage are additionally marked SALVAGE in letters at least 12 mm high. Large packagings carry the marks on at least two opposing sides.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.