Aviva Master Trust and Creative Pension Trust (CPT) have sent off their master trust authorisation applications to The Pensions Regulator (TPR).
Aviva submitted its application on 13 March, while CPT - the Creative group's master trust - submitted its application yesterday (18 March), joining at least 15 other master trusts awaiting response.
Aviva pension governance manager Stuart Gash said the application is the result of a huge amount of work undertaken by individuals and teams across Aviva, its independent trustee board and their advisers.
"We now await the regulator's assessment, although remain completely confident that we have done everything required to ensure Aviva Master Trust is authorised.
"The process itself has resulted in newly documented policies, agreements and trustee powers being put in place."
The master trust will also soon recruit a fifth independent trustee.
Creative Auto-Enrolment (AE) managing director David White added that AE is a "much needed success", and it is "vital" therefore that employers, employees and scheme members have confidence in the master trust providers.
He added: "TPR has rightly set the benchmark high and while it has been a huge amount of work to provide all the necessary evidence, it will mean that only well-run master trust schemes are available to retirement savers.
"We continue to see significant growth in the number of employers and members joining the CPT and our focus is on making sure we do everything we can to help them get to retirement with the best possible outcome."
Master trusts now have less than two weeks to send off their applications to the regulator, and it has been nearly six months since the window opened.
Master trusts also had the opportunity to take part in a readiness review in the middle of last year in preparation for applying. However, PP analysis shows there are still 33 master trusts yet to publicly declare their intentions, including NEST.
By the end of February, just one master trust - Willis Towers Watson's LifeSight - had been authorised, after also being the first master trust to apply.
According to the watchdog's latest monthly update, published on 6 March, and PP analysis, 18 master trusts have applied for authorisation, including LifeSight.
So far, the names of 16 master trusts that have applied or been authorised are publicly known. The most recent applications were sent by Smart Pension on 15 March, National Pension Trust on 13 March, and Aon on 11 March.
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