Section 1201.03(a) states (in its title and text) that use by a related party “must” be disclosed in an application. But the Section then proceeds to say that that use by a related party “should” be disclosed in an application under §§1(a) and (b). Is it mandatory or permissive? Either way, since TEAS forms reference use by a related party in the alternative, there may be no need to affirmatively disclose the fact. The TMEP should be revised to clarify any obligation and take into account the electronic forms.