A lot of Older TYPE B PACKAGINGS will no longer be usable after Oct.2008. See ref. below.
CHAPTER I--NUCLEAR REGULATORY COMMISSION (CONTINUED)
PART 71_PACKAGING AND TRANSPORTATION OF RADIOACTIVE MATERIAL--Table of
Subpart C_General Licenses
Sec. 71.19 Previously approved package.
(a) A Type B package previously approved by NRC, but not designated
as B(U), B(M), B(U)F, or B(M)F in the identification number of the NRC
CoC, or Type AF packages approved by the NRC prior to September 6, 1983,
may be used under the general license of Sec. 71.17 with the following
additional conditions:
(1) Fabrication of the packaging was satisfactorily completed by
August 31, 1986, as demonstrated by application of its model number in
accordance with Sec. 71.85(c);
(2) A serial number that uniquely identifies each packaging which
conforms to the approved design is assigned to, and legibly and durably
marked on, the outside of each packaging; and
(3) Paragraph (a) of this section expires October 1, 2008.[/b]