“…There has been a proliferation of various SS types (Schleifer et al, 2019). They can be classified by their degree of obligation as voluntary or mandatory, or according to the geographic coverage area: national, regional, and global schemes, or related to who established them: government, private sector, NGOs, and International Organizations (Fernandes & Bian, 2016; Lee et al, 2012). This variety has caused many SS to exist parallel in a given sector, a phenomenon known as standard multiplicity or standard fragmentation (Fiorini et al, 2017; Fransen et al, 2019; UNFSS, 2018).…”