Danish: pr. d.

[Gavril]

Tak for din henvendelse til Miljøstyrelsen pr. d. 09-05-2023 vedr. [...]

"Thank you for contacting the Danish Environmental Protection Agency [???] 09 May 2023 regarding [...]"

"pr. d." = ?

Thanks for your time,
Gavril

 

[Segorian]

"pr. d." = ?

Most probably per dato. Thus, “din henvendelse … pr. d. 09-05-2023” = “your inquiry … dated May 9th 2023”.

 

[AutumnOwl]

Most probably per dato. Thus, “din henvendelse … pr. d. 09-05-2023” = “your inquiry … dated May 9th 2023”.

Or per den, see this list of Danish abbrevations:
Dansk förkortningsordlista och lexikon

 

[Segorian]

Or per den

Yes, even more likely, although it is difficult to tell given that the meaning is the same.

 

[bicontinental]

Yes, even more likely, although it is difficult to tell given that the meaning is the same.

Yes, the meaning is essentially the same, but d. 9-5-2023 is read, Den niende i femte, 2023,... 'd.' being short for 'den' in this context.