The International Electrotechnical Commission has released a consolidated edition of IEC 60670-22:2003+AMD1:2015. This standard applies to “Boxes and enclosures for electrical accessories for household and similar fixed electrical installations – Part 22: Particular requirements for connecting boxes and enclosures.” The consolidated version can be purchased on IEC’s website.
“IEC 60670-22:2003+A1:2015 applies to boxes, enclosures and parts of enclosures (hereafter called “boxes” and “enclosures”) for electrical accessories with a rated voltage not exceeding 1 000 V a.c. and 1 500 V d.c. intended for household or similar fixed electrical installations, either indoors or outdoors. This standard applies to connecting boxes for junction(s) and/or tapping(s). This consolidated version consists of the first edition (2003) and its amendment 1 (2015). Therefore, no need to order amendment in addition to this publication.”
*Description from the IEC website.