I am also working as QA in pepper processing. And, i have questions.
(1) How many HACCP are there?
There is no limit. Many variations/interpretations of the reference systems mentioned in (2,3) have been published although most utilise a similar set of Basic Steps.
(2) is HACCP Codex and HACCP NACMCF different?
They were theoretically harmonised ca. 1997 but there are some differences, eg NACMCF offers a specific list of Prerequisites, Codex HACCP does not.
(3) and HACCP plan in ISO 22000 and BRC, are they different ?
ISO22000 uses a "generic" modified version of Codex HACCP, notably involving a refocussing on Control Measures and the introduction of OPRP. BRC references Codex HACCP.
(4) And, what type of HACCP is used in ISO 22000 and BRC?
See (3)
Thanks and best regards.