[Code of Federal Regulations]
[Title 46, Volume 1]
[Revised as of January 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 46CFR39.40-1]

[Page 516]
 
                           TITLE 46--SHIPPING
 
         CHAPTER I--COAST GUARD, DEPARTMENT OF HOMELAND SECURITY
 
PART 39_VAPOR CONTROL SYSTEMS--Table of Contents
 
Subpart 39.40_Lightering and Topping-Off Operations with Vapor Balancing
 
Sec. 39.40-1  General requirements for vapor balancing-TB/ALL.


    (a) Except as provided in paragraph (b) of this section, each vessel 
which uses vapor balancing while conducting a lightering or topping-off 
operation must meet the requirements of this subpart in addition to the 
requirements of subparts 39.10, 39.20, and 39.30 of this part.
    (b) An arrangement to control vapor emissions during a lightering or 
topping-off operation which does not use vapor balancing must receive 
approval from the Commandant (G-MSO).
    (c) A vapor balancing operation must not use a compressor or blower 
to assist vapor transfer without approval from the Commandant (G-MSO).
    (d) Vapor balancing is prohibited when the cargo tanks on a vessel 
discharging cargo are inerted and the cargo tanks on a vessel receiving 
cargo are not inerted.
    (e) A vessel which intends to engage in a lightering or topping-off 
operation while collecting cargo vapor from other than crude oil, 
gasoline, or benzene must receive specific approval from the Commandant 
(G-MSO).

[CGD 88-102, 55 FR 25446, June 21, 1990; 55 FR 39270, Sept. 26, 1990, as 
amended by CGD 95-072, 60 FR 50462, Sept. 29, 1995; CGD 96-041, 61 FR 
50727, Sept. 27, 1996]