There is no specific restriction in the Business Occupancy chapter of the 2000 LSC on storage in exit access corridors - probably just a definition thing so no need for it. The 2006 IFC, Section 315.2.2 (and similar in 2000 LSC, Section 7.1.3.2.3) prohibits this storage in exit enclosures (but not in exit access corridors). 2006 IFC just goes a bit further in Section 315.2 just to say storage of combustibles in buildings shall be 'orderly' and separated from heat sources.
Meanwhile, it is easy to cross the threshold of the definition of a corridor to the definition of a storage room by doing this thereby invalidating the 'corridor' storage room from use as exit access - so where is the required exit access now? Can't go thru the 'storage room'! Answer - remove the storage to a 1-hour enclosure and let's call that storage room a corridor again
