3. variants - ja runa ir par kadu ieriici, nevis tikai programmaturu, ja teksts ir par drosibas proceduram un noradijumiem

LOCKOUT ir aparaata nosleegsana/blokjeeshana ar atsleegu, blokeesanas ieriiceem, laujot tikai noteiktaam personaam tam piekluut - drosakais variants.
TAGOUT - aparaata markjeeshana ar noraadiijumiem, piem., "nepiederosham personam aizliegts", "atlauja izmantot ir taadaam un taadaam personaam", tacu pati ieriice blokeeta netiek, vai arii tiek bloketas tikai atsevishkas daljas.

Lockout - A device that utilizes a positive means such as a lock, either key or combination type, to hold an energy isolating device in the safe position and prevent the energizing of a machine or equipment. Included are blank flanges and bolted slip blinds.

Tagout device - A prominent warning device, such as a tag and a means of attachment, which can be securely fastened to an energy isolating device in accordance with an established procedure, to indicate that the energy isolating device and the equipment being controlled may not be operated until the tagout device is removed.

http://www.cdc.gov/elcosh/docs/d0100/d000166/d000166.html
http://www.pp.okstate.edu/ehs/manuals/Lock-tag.htm