If you need more specific information to believe me other than my word and several of my friends who are current and former B1 pilots and WSOs then here you go:
"WEAPONS
The B-1B does not currently carry nuclear weapons. The aircraft has three internal weapon bays and six external hardpoints under the fuselage. The maximum internal weapons payload is 75,000lb and maximum external weapons payload is 59,000lb. The internal weapons bays are capable of carrying the AGM-86B Air Launch Cruise Missile (ALCM), the AGM-69 Short-Range Attack Missile and the Joint Direct Attack Munition (JDAM). The external hardpoints can carry the AGM-86B ALCM.
AGM-86B is a strategic cruise missile, fitted with a conventional warhead with a yield of 200kt and a range up to 2,500km. The aircraft is certificated to carry the AGM-69 nuclear strategic stand-off missile, although it is not currently carried. The Boeing JDAM uses global positioning system (GPS) and inertial navigation guidance for delivery of the 1,000lb Mark 83, 1000lb BLU-110, 2,000lb MK-84 and 2,000lb BLU-109. The B-1B can carry 24 JDAM, with a range up to 15 miles and strike precision within 13m.
The bomb payload of the B-1B includes the Mark 82 general-purpose 500lb bomb. It can also carry up to 30 Textron Sensor Fuzed Weapons (SFW). SFW has ten anti-armour submunitions, each with four Skeet warheads. The B-1B can also carry the 500lb Mark 36 Mine and the 500lb Mark 62 Sea Mine.
CONVENTIONAL MISSION UPGRADE PROGRAM
With the end of the Cold War, the USAF instituted the B-1B Conventional Mission Upgrade program. This series of upgrades involves: Block C (completed 1997) - capability to drop cluster bombs; Block D (completed June 2001) includes deployment of JDAM, new defensive system, new navigation and communications systems including the fitting of GPS (global positioning) systems to enable the dropping of satellite-guided munitions such as JDAM, and an AN/ALE-50 towed decoy system scheduled for 2003; Block E (due to enter service in 2003) - capability to deploy JSOW (Joint Standoff Weapon), Wind Compensated Munitions Dispenser (WCMD) and JASSM (Joint Air to Surface Standoff Missile); and Block F – upgrade of electronic countermeasures. JASSM entered low rate initial production in January 2002 with full production in 2003.
As part of the Block E computer upgrade program, in May 2002 a B-1B successfully targeted three different weapon types (Mk-84 bomb, Mk-82 bomb and CBU-89 cluster munitions) against three separate targets."
That one is from -
http://www.airforce-technology.com/projects/b-1b/
"Conventional Mission Upgrade Program
As the cold war began to thaw, the B-1B was transitioned out of its nuclear mission. The last B-1B stood its last nuclear alert in 1997. In June 1994 the B-1B began an Operational Readiness assessment that marked the beginning of the Conventional Munitions Upgrade program.
This program was a phased approach to convert the nuclear bomber to a conventional platform. It was broken into four distinct blocks that included hardware and software modifications to incrementally increase the B-1B’s conventional capability.
Block C was the first increment. In 1995, Boeing completed hardware and software enhancements to accommodate a range of conventional gravity weapons such as cluster bomb units. It certified high- altitude release of 84 Mk82 bombs and 30 Conventional Bomb Units from a new 10-carry bomb rack.
Block D incorporated GPS navigation, Joint Direct Attack Munitions (JDAM) anti-jam radios and the ALE-50 towed decoy countermeasure.
Block E incorporates new mission computers, Wind Compensated Munitions Dispensers (WCMD), the Joint Stand-off Weapon (JSOW), and the Joint Air to Surface Stand-off Missile (JASSM). Block E gives the B-1B the unique flexibility to employ three types of weapons simultaneously.
Block F adds a new radar warning receiver and the Integrated Defensive Electronic Countermeasures system suite with a fiber optic towed decoy. This capability allows the B-1B to fulfill its requirement to penetrate post 2010 threat environments"
That one is from -
http://www.boeing.com/defense-space/mil ... binfo.html
I was wrong about timing and treaties though. Apparently we could have flown nukes in them we just decided after 1997 that we did not need to. I am not too sure what the Russians need to inspect (other than further Start II stuff) but I am told by my above mentioned friends that they look specifically to see that we do not use them for nukes.
But to set the record straight......the B1 does NOT, I repeat, does NOT carry nukes. It used to - actually not too long ago (I thought it was longer) but it does not any more.