What does the Code say about Flare stack location with respect to Prevailing Wind Direction

What does the Code say about Flare stack location (Upwind or Downwind)?

Reference: 8.3.1.k

Environmental Protection for Onshore Oil and Gas Production Operations and Leases

API RECOMMENDED PRACTICE 51R

FIRST EDITION, JULY 2009

Reference:5.8.c.1

Recommended Practice for Design and Installation of Offshore

Production Platform Piping Systems

API RECOMMENDED PRACTICE 14E (RP 14E)

FIFTH EDITION, OCTOBER 1, 1991

Keywords: Upwind, downwind, crosswind, Prevailing wind.

Wind Direction that influence the Plot plan