To effectively interrupt the transmission of pathogens, correct hand disinfection is essential. 

For this reason, the Commission for Hospital Hygiene and Infection Prevention (KRINKO) recommends training on the topic at least once a year. Indications for hand disinfection in connection with training:

KRINKO recommendation: "To ensure compliance with hand hygiene, all employees must be trained at least once a year (and promptly when problems in this area are indicated) on the indications for hand disinfection in conjunction with training, e.g. with [...] dye in the HDM (Cat. IB)." ^{[1; p. 1209]}

Legal framework

Are recommendations mandatory?

The controversial answer: Although it "Recommendation“ means, some recommendations causing obligation, as stated in the KRINKO guidelines:

• This is the case because Section 1 Paragraph II of the IfSG requires action in accordance with current state of medical and epidemiological science and the Robert Koch Institute (RKI) was appointed as the scientific body pursuant to Section 4 II 1 of the IfSG. The states are responsible for enforcement pursuant to Section 54 of the IfSG.
  
  
• The RKI recommendations of the Category IA and IB are based on verified epidemiological findings – in contrast to the less binding categories II and III. ^{[1; p. 1189]}
  
  
• The recommendation for annual hand disinfection training of all employees is based on precisely these reliable clinical and epidemiological studies. Their effectiveness has been recognized by the KRINKO at the RKI – which leads to the classification mandatory category IB justified. ^{[1; pp. 1206, 1209]}

Conclusion → Failure to implement RKI recommendations is therefore a violation of the IfSG.

Sources:

[1] Federal Health Gazette No. 59; Hand hygiene in healthcare facilities - Recommendation of the KRINKO at the RKI; Springer-Verlag Berlin; Heidelberg; 2016
[https://www.rki.de/DE/Themen/Infekt...]