eb683700__21_5_6_Freeze_Codes__Cont__1___THEN_
[If the TC 520 cc is:] 70, 75, 80, 82 [THEN:] 
Contact the Advisory Group prior to taking account action. These accounts are initiated by the appropriate Advisory Group (formally Technical Support function (TSf)) when litigation is pending. Do not send correspondence or amended returns to the Advisory Group when litigation is pending. Contact numbers can be found by selecting Advisory Unit, (formally Technical Services), under the Who/Where tab on the SERP Home Page.
Internal Revenue Manual - 21.5.6 Freeze Codes (Cont. 1)
THEN: