Are there any hard and fast rules for tool box talks? The reason I ask is that the company I work for have electrical and mechanical engineers who are basically out of the building all week, working on numerous sites making it difficult for supervisors to deliver TBT's.. My question is, can it be considered acceptable for  employees to be sent the information via ipads and they sign and return once they have read it. This way we can be assured they are receiving the information necessary. Any questions can be referred to the relevant department. My thoughts are that I'd know they were receiving information on a regular basis instead of an ad hoc approach.

Other more formal training programmes are in place and employees would be brought into the business for this.

Thank you

Yes I understand that. I thought to include some questions at the end of the topic to establish their level of understanding. The current process doesn't work so I need to find a suitable alternative.

As you are using I pads to deliver information maybe a good idea would be  web ex presentations, you can deliver the talk personally to a number of teams at multiple locations, also take a role call of employees that have attendended. This will allow you to give spacific information on the desired topic, also link this with your questionaire and it may give you what you need. I am about to start a new role and this will be one of the issues i will face due to the logistics of the team i am also considering facetime as a means of communication.