1.1 These standards have been developed for the
design, construction, and operation of vapour collection systems on
tankers and vapour emission control systems at terminals. The standards
are intended to apply to vapour emission control systems which collect
vapours of flammable cargoes from tanker cargo tanks during cargo
loading or ballasting operations. Vapour emission control systems
which collect vapour of cargoes having characteristics which may pose
hazards in addition to or other than flammability should be subject
to special consideration by the Administration. These standards are
not intended to require the use of vapour emission control systems
but rather to recommend safety standards when such systems are utilized.
The requirement to collect vapours will stem from a port Administration
or terminal regulation. These standards are intended to promote the
safety of terminals, tankers, and their personnel, recognizing the
unique design features and characteristics of these systems.