According to ISO 14001:2015 an organization must determine who are its interested parties and what are their relevant needs and expectations concerning the environment. Please check clause 0.5 of ISO 14001:2015. If an organization considers its employees and the public as interested parties the following question is: what needs and expectations concerning the environment are relevant for them? There is nothing in ISO 14001:2015 that makes welfare mandatory. To be correct here we should define welfare. If by welfare we mean the environmental conditions of the neighborhood, I can think that it is a way of avoiding environmental complaints and problems with local authorities.
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