23:04 Feb 24, 2009 

Thanks Chris. The cijferlijst states 3 subjects: aanleggen installatieleidingen/gasbinnenleidingen & aansluiten huishoudelijke toestellen. In discussions with the client he's told me more about the plumbing & gasfitting.

But: because 'installatiemonteur' can mean different things and does not necessarily specify in itself that it's about gasfitting etc here, I am reluctant to translate it as such. It would be adding extra information to the certificate in my opinion.

14:19 Feb 24, 2009 

Is the certificate not accompanied by a transcript (cijferlijst) that details the specific subjects covered (e.g. installation of domestic gas appliances)?

13:37 Feb 24, 2009 

I would use something like the above following Chris' reasoning.