The New York Stock Exchange has deleted Rule 325(e) of its financial responsibility rules effective November 30, 2007. Rule 325(e) was adopted in 1978 when the NYSE allowed lessee and physical access members who did not own an exchange seat to trade on the floor.

Rule 325(e) required a member firm that employed individuals to execute orders to provide evidence of financial responsibility in the amount of $100,000. This could be done by a guarantee from a clearing organization, an escrow account, a letter of credit or a pledge of securities.

 http://a257.g.akamaitech.net/7/257/2422/01jan20071800/edocket.access.gpo.gov/2007/pdf/E7-25190.pdf