<p>Does anyone know if an extension course begins with a “X4”, like English Lit X415, for example, does the 4 indicate anything in particular, like it is regarded as a senior level upper div undergrad course of perhaps grad school level? I think all extension courses begin with an “X” though.</p>
<p>Thank you.</p>
<p>Courses numbered 1-99 are considered lower division (freshman/sophomore) courses. Those numbered 100-199 are considered upper division (junior/senior) and usually have pre-requisite coursework required.</p>
<p>sorry, i realized you were asking about a 400 level class. the website says:
X 400 to X 499: Generally post-baccalaureate credit-bearing courses and lecture series in professional fields; designed in content, focus, and presentation style to standards of instruction used in degree programs. Credit earned in these courses may lead to the award of formal certificates by UCLA Extension, and may be transferable for advanced standing in degree programs in professional studies elsewhere, subject to the procedures of the receiving institution.</p>