Staff training and briefing register. Records training completed according to the plan: who attended, when, the topic and the signature. This is the first thing requested during an incident investigation.
Keeping a briefing register is daily practice under the training requirements for staff involved in food production and circulation. The electronic signature saves the person's full name and timestamp automatically, and a sample completed form is available to download.

The same file the service provides to an inspector. The data is fictional: the organization “Ромашка” and five employees.
Required fields: Training date and topic; Employee's full name and position; Instructor's and trainee's signatures. An empty field is equivalent to an incomplete log for an inspector, so use a dash deliberately and include an explanation.
According to the HACCP plan: the frequency is set when describing the control point and justified in the plan itself.
Customs Union Technical Regulation 021/2011, Article 10. Include the regulatory reference on the title page so the inspector can immediately see why the log is kept.
Yes. SanPiN 2.3/2.4.4282-26 does not require paper: the important points are being able to see who made an entry and when, and preventing unnoticed retrospective changes. For an inspection, print the electronic log for the required period.
Inspectors usually request records for the last 12 months, so one year is a practical minimum. Keep logs connected with a food poisoning investigation or a complaint until the proceedings are closed.