Regal Textiles, a well-established fabric manufacturing company, has been operating under the Textile Regulations Act of 1980 for several decades.…

Regal Textiles, a well-established fabric manufacturing company, has been operating under the Textile Regulations Act of 1980 for several decades. Over the years, various provisions of this Act have been subject to interpretation by both the company and the industry at large. One such provision pertains to the definition of "sustainable practices," which has been a point of contention. "Sustainable practices" to include the use of organic materials and recycling waste products. This interpretation has been widely accepted and acted upon without any legal challenges. Recently, a new regulatory body has argued that "sustainable practices" should be strictly defined to include only carbon-neutral processes, excluding the use of non-organic recycled materials. This new interpretation has created confusion and potential compliance issues for Regal Textiles, which has long adhered to the established understanding of the term. He prepares to argue that the long-standing interpretation of "sustainable practices" should be upheld. What principle will Mr. Kumar likely rely on to argue against the new interpretation proposed by the regulatory body?