In a personal injury action, is plaintiff permitted to refer to a prior pleading in order to make a supplemental complaint complete?

In addition, plaintiff is informed that the court cannot refer to a prior pleading in order to make plaintiff's supplemental complaint complete. Local Rule 220 requires that a supplemental complaint be complete in itself without reference to any prior pleading. This requirement exists because, as a general rule, a supplemental complaint supersedes the original complaint. See Loux v. Rhay, 375 F.2d 55, 57 (9th Cir. 1967). Once plaintiff files a supplemental complaint, the original pleading no longer serves any function in the case. Therefore, in a supplemental complaint, as in an original complaint, each claim and the involvement of each defendant must be sufficiently alleged.