<a href="https://en.wikipedia.org/wiki/Code_of_Federal_Regulations" class="extiw" title="en:Code of Federal Regulations">Code of Federal Regulations</a>, seen at the Mid-Manhattan Library. Editions of Title 3, on the President, are kept on archive. Notice that for the first year of each new presidency, the volume is thicker.
<a href="//commons.wikimedia.org/wiki/User:Kaihsu" title="User:Kaihsu">Kaihsu Tai</a>
2009-03-09
<span class="int-own-work" lang="en">Own work</span>