(6)The Registrar may,(a)at any time during the currency of the chitty, permit the substitution of the security:Provided that such substituted security shall not be less than the security given by the foreman under sub-section (1); or(b)on the termination of the chitty, release a part of the security:Provided that the security left after release of the part is sufficient to satisfy the outstanding claims of all subscribers.
