What does OK to board no means?

Related questions

1. Is OK to board required for Indigo for Dubai?
2. How do I get OK to board on Jet Airways?
3. How do I know if I have ECR or ECNR?
4. Is OK to board required for resident visa?
5. What is OK to board IndiGo?
6. Where are Israelis not allowed?
7. Do we need OK to board for Indigo?
8. What is the difference between flydubai and Emirates?
9. Does UAE require OK to board?
10. Does Indigo require OK to board?

Tags

1. #board
2. #boarding
3. #allow
4. #means
5. #flight
6. #based
7. #against
8. #airline
9. #short
10. #number
11. #issue
12. #validated
13. #inspected
14. #message
15. #check
16. #system
17. #paper
18. #reservation
19. #passport
20. #staff
21. #stamped
22. #entered