The June, 2006 issue of "Our Kingdom Service" is available for download at Reexamine.org.
This issue contains the yearly reminder for young men to register with the Selective Service.
Here is the exact announcement.
From: OUR KINGDOM MINISTRY, June 2006, page 3
U.S. Selective Service regulations require that all men register at the post office within 30 days after reaching 18 years of age. A male noncitizen under the age of 26 who takes up residency in the United States must also register with Selective Service within 30 days of becoming a resident. All of those required to do so should comply with this law, viewing it as a Christian's obligation to the superior authorities. From the time he registers until the year he turns 26 a brother must notify Selective Service of any change of address within ten days of the change. Elders should be aware of young brothers nearing the age of 18 and new alien residents betweeen the ages of 18 and 26 and remind them of their duty to register with the Selective Service System.
Why is the Watchtower so anxious to make sure that the young brothers follow this one specific law that they publish this announcement once a year in the KM?
Why do they think it is their responsibility, as well as the elders, to remind people that this law is to be followed? There are many other laws on the books, but you don't read specific announcements in the OKM to obey those as well, and the elders are not told to go around and remind people to obey these other laws.
So why is the Selective Service Registration law so special to The Watchtower?
I think publishing the yearly notice is an attempt to absolve themselves of any legal liability if some young brothers are prosecuted for not registering.