Mewn adroddiad diweddar, dywedodd y Resolution Foundation bod tua 400,000 o bobl dros 25 oed yn y DU wedi cael contractau dim oriau gyda'r un cyflogwr am dros 12 mis. Mae'r canllawiau sydd wedi'u cyhoeddi heddiw yn cynnig y dylai sefydliadau sicrhau bod modd i'w staff ofyn am adolygiad o'u trefniadau gwaith, gyda'r nod o newid eu contractau os ydynt wedi gweithio oriau rheolaidd dros gyfnod parhaus, ac fe ddylent hefyd gael mynediad at yr un trefniadau datblygiad cyflog â gweithwyr llawn amser.  Mae'r canllawiau'n dweud yn glir na ddylai aelod o staff sy'n gwrthod cynnig am waith, am ba bynnag reswm, gael ei drin yn llai ffafriol o ran cael cynnig gwaith yn y dyfodol.
The Resolution Foundation recently reported that in the UK some 400,000 people over 25 years old have been on zero hours contracts with the same employer for more than 12 months.  The guidance published today proposes that organisations should ensure staff can request a review of their working arrangements with a view to changing their contractual arrangement if they have been undertaking regular hours over a continuous period of time and they should also have access to the same pay progression as full time employees.  Our guidance says that staff who do not accept work for whatever reason should not suffer a detriment as regards being offered work in the future.