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Third , and perhaps most important , the carrier can maintain its position as the single provider of wireless services to its customers . Both the publishers and libraries express the same view that technological obsolescence is the biggest challenge , the carriers may well have long lives ( and we're hearing 100 years as the expected CD-ROM life becoming pretty well a standard claim from manufacturers these days ) , but the hardware and software to read it certainly is n't going to be around nearly as long . Because such carriers must receive reimbursment no later than the first quarter of the calendar year following the year in which the costs for services were incurred , the carriers will never have to wait more than fifteen months to receive payment , an amount of time that we believe is reasonable given the associated administrative burdens on the Administrator . However , if the Texas company provides broker services solely to the Carrier , the broker would be considered an agent of the carrier and thus by having an agent in Texas , the carrier would be doing business for IMC purposes . But since Congress did not approve the settlement by the year-end deadline , the carriers say they want their money back . With aircraft that extended the fleet 's firepower beyond the range of large caliber battleship guns , the carrier 's status was elevated from reconnaissance platform to that of major surface combatant . First , the carrier can develop and offer branded services and content that are geared specifically to certain segments of its customer base . For the fourth quarter of 2003 , the carriers recorded a bumping rate of 0.78 per 10,000 passengers . Quarks are held together to form nucleons by particles called gluons , the carriers of the strong nuclear force . Indirectly the researchers at HERA also measure the gluons , the carrier particles of the strong force .