Table of contents:

1 Principles of housing and care
1.1 the need of standarisation
1.2 The impact of housing on animal welfare

2 International rules and guidelines for housing and care of laboratory animals
2.1 Appendix A of the Council of Europe`s Convention ETS 123
2.2 US National Research Council`s Guide for the Care and Use of Laboratory Animals
2.3 Differences and similarities between the Appendix A and the Guide for the Care and Use of Laboratory Animals

3 Conclusions