Bulgaria Bulgarian acronym "МЗ"

[RedMaestro]

Hello All,

I've come across a Bulgarian acronym I can't crack, and I was wondering if anyone here might know what it means. The letters in question are "МЗ". This appears on a lot of documents (for example, the documents for long service medals and the 40th Anniversary of Victory medal), and seems to be related to decrees. A typical pattern is "МЗ № ХХХ 195Х" or "МЗ № УК 63", or "МЗУК" (I've only seen this one once though).

Any ideas? (btw, it's definitely NOT the Ministry of Health in this context)

Thanks,

Alex