13:17 Feb 4 

é utilizada a expressão "subsidiary liability":
ETUC and its sectoral affiliates considered that a Community initiative is required in the form of an instrument to regulate the “chain responsibility” of user enterprises and intermediaries in the case of agency work and sub-contracting. Employer organisations doubted whether a proposal to establish for a principle of subsidiary liability would prove effective. Rather, user enterprises should be able to rely on the fact that sub-contractors have to fulfil their labour law responsibilities.
http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=CELEX:...

02:03 Feb 4 

Pelo restante do texto, subsidiariedade vem de “responsabilidade subsidiária”, que é “secondary liability”, mas eu ainda não consegui achar a palavra/construção certa.