Multiple W2 jobs declaration with employer?

[Pawan]

Is it legal for one to have two W2 jobs with two different employers?
More importantly, do you have to declare with each of the employers that you hold another W2 job (with a different employer)? For example: I work on W2 job with employer A and have just started working on W2 with employer B. Do I have to declare at employer A that I hold another W2 job and vice-versa?

[DoninGA]

There is nothing illegal in having multiple jobs at the same time.  Nor do you have to inform your employer that you have another job.  That is entirely up to you.