This International Standard specifies requirements for the content of welding procedure specifications for laser-arc hybrid welding processes. This standard is part of a standard series. Details of this series are given in ISO 15607:2003, Annex A. This standard lists the variables influencing the quality and the properties of the welded joint. This document has been prepared by ISO/TC 44/SC 10 "Vereinheitlichung von Schweißvorschriften" in collaboration with CEN/TC 121 "Welding", the secretariats of which are held by DIN (Germany). The responsible German standardization committee is Joint Working Committee DIN/DVS NA 092-00-21 AA "Laserstrahlschweißen und verwandte Verfahren (DVS AG V 9.2)" ("Laser beam welding and allied processes (DVS AG V 9.2)").