Shunter driving

I’ve been asked by an agency if I could work the weekend driving a shunter/tug, I’ve the option of using one of there units or the tug, question I want to ask is
If using the tug what do I do with my digi card if I drive there unit to the job? Agency man wasn’t sure

If its off road ie on site no need to record driving as it would just be other work.

just re read your post . if your using a road unit to get to the site and no-one else is going to use the unit . lock it leaving card in Mode being work . lock it up then change the mode for your breaks then back to work then drive back to base.

No tacho in tug or van or car or warehouse then you record what you did manually on digi printout paper or separate analogue card