How can I find out which universities allow a sandwich (stapler) PhD thesis? Following on from What is a &quot;Sandwich thesis&quot;? , is there an easy way to find out which departments at which universities will allow a sandwich thesis (aka a stapler thesis, portfolio thesis, three-paper thesis, thesis by portfolio of publications, thesis by publication, article thesis or compilation thesis)?

That is to say, universities that explicitly allow PhDs theses that consist of a collection of published or in-press articles, possibly topped and tailed by an introduction and summary? It is, to my knowledge, quite rare in the UK - does it perhaps tend to be a country-specific thing?

I accept that it will depend on the supervisor's approval too, but that's a secondary issue: the supervisor can't allow a stapler thesis if the university/department does not. My question is about identifying eligible departments.
The department where you are going to submit the thesis probably has a document of PhD/thesis regulations that specify if such a thesis is allowed. For example, my department's regulations have the following statement:


  [...] Scientific publications may form a part of a doctoral thesis. If the doctoral thesis consists of several scientific papers, a presentation of the guidelines of the papers submitted has to be added in an appropriate extent. [...]


i.e. a sandwich thesis is possible here. So you should find out if your favored departments have similar regulations and have a look in there.