Has NEC produced a standard payless form for use with the ECC in the UK?
There is no standard payless form. Such a notice should, in any event, be rarely needed for the ECC. It is only issued if the employer decides to pay less than the project manager certifies, or if the project manager does not issue his or her certificate within the timeframe set out in the contract. Since both of these should rarely, if ever happen, a payless form should not be needed.