EOI in a number of PNPs simultaneously

[Oluka]

Some PNP guides ask candidates not to send them application if candidate already has an application in process for another province. But EOI is not an application yet, is it? So, am I right that it is allowed to send EOI simultaneously to NB and PEI, for example?

And one more question. NS hasn't EOI, but it is said in the guide: "Applications to the NSNP are treated as an expression of interest ". But what do other provinces think about application to the NSNP?...