Figure C-5. Sample of completed DA Label 80 overprinted "VOID

TB 750-25

d. Training Aid (TNG), (fig. C-8). TNG overprinting is applicable to instruments that

are used in school training courses that do not require calibration (see AR 750-43). It only

applies to instruments that will not adversely affect training efficiency, safety, or damage

to equipment if the instrument is not calibrated. When an out-of-tolerance instrument will

adversely affect safety, training efficiency, or possibly cause damage to equipment,

overprinting TNG is not authorized. Training aid instruments do not receive scheduled

cycle calibration support, but calibration support may be obtained on an "as required

basis. Identifying an instrument as a training aid does not relieve the owner/user of

organizational maintenance responsibilities or from obtaining repair support when it is

unserviceable. The TMDE support coordinator, or designated alternate, will sign block 4 of

the DA Label 80 and overprint it TNG, enter appropriate information in block I and block

5, then affix the DA Label 80 to the instrument that is designated as a training aid. The

school commandant must approve the designation of training aid to instruments used in

the schools training courses. TNG labels will be replaced whenever they become illegible or

the status of the instrument changes.

e. Nuclear Weapons (HO5), (fig. C-9). HO5 overprinting is applicable to all nuclear

weapons TMDE. HO5 will be overprinted on a DA Label 80 or DA Label 163 and affixed to

the instrument at the time it is calibrated.

f. Extended Interval (EI), (fig. C-10). EI overprinting on DA Label 80 or DA Label 163

is applicable to any TMDE calibrated at authorized intervals greater than the interval

specified by TB 43-180, IAW AR 750-43.

Figure C-5. Sample of completed DA Label 80 overprinted "VOID

C-10