Except for those Member States that opt for a uniform unit value from the first year of implementation of the scheme, the convergence should be made in equal steps.
Seachas i gcás na mBallstát sin a roghnóidh luach aonaid aonfhoirmeach amhail ón gcéad bhliain ina gcuirfear an scéim chun feidhme, ba cheart go nglacfaí céimeanna comhionanna agus an cóineasú sin á dhéanamh.