ERA 1996 s.29 is entitled "Exclusions from right to guarantee payment".
ERA 1996 s.29(3) as originally enacted used the words trade dispute, not "strike, lock-out or other industrial action".
Trade dispute now has a special narrow meaning. The words "strike, lock-out or other industrial action" were substituted for "trade dispute" in 1982 when the narrow definition was introduced (so as to prevent an unintended extension of employees' rights to guarantee payments).