Oubliette: How do you know this?
Have you seen an organizational chart or something? I'm not trying to be difficult, but even after being a JW for 30+ years, I have no clear understanding or knowledge of their organizational structure.
Oh, you're not being difficult. It's a valid question.
My initial source:
"On April 14, eight days before Schroeder returned my call, a
Witness in New York named Joe Gould phoned the Brooklyn Service
Department and talked to Harley Miller, a member of the five-man
Service Department Committee. [25]"[25] This committee supervises the Service Department, at that time composed of a staff of
about forty persons."- CoC, 4th ed., p. 299.
And clues from the WT CD-ROM:
*** w96 12/1 p. 22 The 101st Class of Gilead—Zealous for Fine Works ***
"Leon Weaver of the Service Department Committee ..."
*** w94 6/1 p. 25 Gilead Graduates Find “More Happiness in Giving” ***
"Leon Weaver, a member of the Service Department Committee, developed the theme ..."
(Weaver is named as being on the "Service Committee" as of 9/2014.)
*** w88 9/15 p. 31 A Staunch Fighter for the Truth ***
In September 1977, Brother Poetzinger was appointed to the Governing Body and was able to come to the Society’s world headquarters in Brooklyn, New York, somewhat over a year later. He served with the Service Committee of the Governing Body and the Service Department Committee.
(Two different entities here.)
From the BOE letters I have:
1/2/1995 - A change on where Gilead applications should be sent,
"Watch Tower Bible and Tract Society
Attention: Service Committee of the Governing Body [address]"
Letter signed "[WTS] of Pennsylvania for the Service Committee"
Directives to the Congregation Service Committees are often signed WTS of NY or CCoJWs.
The 10/1/2012 BOE on Child Abuse is from the CCoJWs and yet it directs that the Service Department is to be consulted (as well as Legal) in certain circumstances.
Certainly the lines between corporations appear to be blurred. The no-brainer is that the GB has ecclesiastical authority over the practices and directives these other corporations pass on to the bodies further down the hierarchy.