Refer to figure.
The old rules for NOTAM languages stated that "Aeronautical information products [NOTAMs included] intended for international distribution shall include english texts for those parts expressed in plain language".

However, it was proposed in 2014 that all NOTAMS should be published in the english language. This was for a multitude of reasons, the annex above is the appendix to the decision, explaning some of the rationales behind it. This is now the case.