It is important that the tender is set up in such a way that local and specialist contractors are able to take part in the programme, keeping earnings from the programme in the local economy.
Mae'n bwysig llunio'r tendr mewn ffordd sy'n golygu y gall contractwyr lleol ac arbenigol gymryd rhan yn y rhaglen, gan gadw enillion o'r rhaglen o fewn yr economi leol.