I have got NSW state sponsorship and have received the invite to apply for 190 visa. I have query regarding employee reference. For ACS I provided Stat dec from my supervisor and that worked. I did not provide employment reference in Company letterhead as my company is not aware that I am applying for this visa. Now for applying 190 visa can I use that same Stat Dec by my supervisor or is it mandatory to get employment reference in company letterhead. I have 8+ years experience with only 1 company and I have all the payslips, appointment letter, promotion letter, Tax statements. Will this be enough or I HAVE to get the reference in company letterhead? Please advise.