Mismanagement of Middlesex County's public hospital in the mid-1990s left that county on the brink of insolvency, and in 1997 the Massachusetts legislature stepped in by assuming all assets and obligations of the county. The government of Middlesex County was officially abolished on July 11, 1997. Later that year, the Franklin County Commission voted itself out of existence. The law abolishing Middlesex County also provided for the elimination of Hampden County and Worcester County on July 1, 1998. This law was later amended to abolish Hampshire County on January 1, 1999; Essex County and Suffolk County on July 1 of that same year; and Berkshire County on July 1, 2000. Chapter 34B of the Massachusetts General Laws allows other counties either to abolish themselves, or to reorganize as a "regional council of governments", as Hampshire and Franklin Counties have done. The governments of Bristol, Plymouth, and Norfolk Counties remain substantially unchanged. Barnstable and Dukes Counties have adopted modern county charters, enabling them to act as efficient regional governments. Dukes County in particular has a strong regional planning agency known as the Martha's Vineyard Commission.