By this post actually I'm not searching for other solutions. I'm just questioning the contractor who says he can use API610 Annex F and apply 4 times API table 5 for individual loads while applying 2 times API for combined bending equations. Can he do that? Can he go upto 4 times API? According to the prior sent message from myself their is no evidence in para. 5.5.5 or F.1.2 that states that he can use 4 times API, correct?