Read more; https://wash-alliance.org/our-approach/sustainability/
NL was the first country to introduce this clause. From the international NGO sector, there was a reluctance to implement this.
Sustainble clause DGIS
2010. Sustainability clause DGIS.
(Guarantee of 15 years functionality) Started by DGIS for their programs.
FIETS criteria for sustainability (Financial, Institutional, Environmental, Technical, Social)