Under the Health Act, 1970, determination of eligibility for medical cards is the responsibility of the chief executive officer of the appropriate health board. Medical cards are issued to persons who, in the opinion of the chief executive officer, are unable to provide general practitioner medical and surgical services for themselves and their dependants without undue hardship. Income guidelines have been drawn up by the chief executive officers to assist in the determination of a person's eligibility and these guidelines are revised annually in line with the consumer price index. However, these guidelines are not statutorily binding and even though a person's income exceeds the guidelines, he-she may still be awarded a medical card if the chief executive officer considers that his-her medical needs or other circumstances would justify this. Medical cards may also be awarded to individual family members on this basis.