An individual pregnant worker who seeks to show disparate treatment may make out a prima facie case under the McDonnell Douglas framework by showing that she belongs to the protected class, that she sought accommodation, that the employer did not accommodate her, and that the employer did accommodate others “similar in their ability or inability to work.” The employer may then seek to justify its refusal to accommodate the plaintiff by relying on “legitimate, nondiscriminatory” reasons for denying accommodation. That reason normally cannot consist simply of a claim that it is more expensive or less convenient to add pregnant women to the category of those whom the employer accommodates. If the employer offers a “legitimate, nondiscriminatory” reason, the plaintiff may show that it is in fact pretextual. The plaintiff may reach a jury on this issue by providing sufficient evidence that the employer’s policies impose a significant burden on pregnant workers, and that the employer’s “legitimate, nondiscriminatory” reasons are not sufficiently strong to justify the burden, but rather—when considered along with the burden imposed—give rise to an inference of intentional discrimination. The plaintiff can create a genuine issue of material fact as to whether a significant burden exists by providing evidence that the employer accommodates a large percentage of nonpregnant workers while failing to accommodate a large percentage of pregnant workers. This approach is consistent with the longstanding rule that a plaintiff can use circumstantial proof to rebut an employer’s apparently legitimate, nondiscriminatory reasons, see Burdine, supra, at 255, n. 10, and with Congress’ intent to overrule Gilbert. Pp. 20–23.I'll try to figure out what the heck that means and provide an update later today.