The PCPNDT Act of 1994 aims to prohibit sex selection techniques before or after conception and prevent the misuse of prenatal diagnostic techniques for determining the sex of the fetus, which has led to over 10 million missing girls in India due to female foeticide. Key provisions of the act include regulating the use of diagnostic tests like ultrasound and fetoscopy only for medical reasons, establishing registration requirements and duties for clinics, doctors and other authorities, and specifying penalties for violations which are considered non-bailable and non-compoundable offenses. Social workers view the act as important for upholding the equal value of children regardless of sex and countering the societal preference for male children that has driven female foeticide.