The New York State Department of Environmental Conservation (informally referred to as NYSDEC, DEC, EnCon or NYSENCON) is a department of New York state government. The department guides and regulates the conservation, improvement, and protection of New York's natural resources; manages Forest Preserve lands in the Adirondack and Catskill parks, state forest lands, and wildlife management areas; regulates sport fishing, hunting and trapping; and enforces the state's environmental laws and regulations. Its regulations are compiled in Title 6 of the New York Codes, Rules and Regulations. It was founded in 1970, replacing the Conservation Department, and is headed by Basil Seggos.

NYS DEC had an annual budget of about $1,430 million for FY 2017, and employs roughly 3,000 people across New York State. It manages over  of protected state-owned land and another  of privately owned land on which it holds conservation easements. The department's activities go beyond land management and environmental enforcement to include the publication of a magazine and a state bird atlas, and the operation of 52 campgrounds in the Adirondack and Catskill Parks.

History

Predecessor agencies

Many of the specific functions of today's DEC began as tasks carried out by individual commissions or agencies created for those specific purposes. These smaller entities merged over time to create today's department, which was officially created in 1970.

The earliest New York state commission dedicated to natural resources was a three-member Fisheries Commission established in 1868. The Forest Commission, set up in 1885 and revised in 1893, was established to oversee the newly created Forest Preserve in the Adirondacks and Catskills, in addition to management of other forests, tree plantings, and forest fires elsewhere in the state. A Forest Preserve Board was also established in 1897, charged with purchasing new state lands for conservation. The Fisheries Commission and the Forest Commission were merged to form the Fisheries, Game, and Forest Commission in 1895; it was renamed the Forest, Fish, and Game Commission in 1900.

Protection of New York's water resources by a state agency began in 1902 with the establishment of the Water Storage Commission, which became the Water Supply Commission in 1905. The new Water Supply Commission also absorbed the River Improvement Commission that had been created in 1904. The Water Supply Commission's duties focused on ensuring adequate water was available for New York's cities, towns, and villages.

In 1911, the Water Supply Commission, the Forest Preserve Board, and the Forest, Fish, and Game Commission were combined to create the Conservation Commission, which was headed by three commissioners charged with managing inland waters, lands and forests, and fish and game, respectively.

The Conservation Commission became the Conservation Department in 1926, following a major re-organization of New York State's government. The new Conservation Department also absorbed the duties of the Water Power Commission (created in 1921) and the Water Control Commission (created in 1922), which were established to monitor the state's hydro-power resources and regulate water flow. The new department also included a Division of Parks, which was made senior to the State Council of Parks that had been established in 1924 to oversee New York's state parks and historic sites outside of the Forest Preserve.

Origin
The New York State Department of Environmental Conservation was created in 1970 by legislation symbolically signed on the first Earth Day by then-Governor Nelson Rockefeller. The new department was charged with the functions of the former Conservation Department, in addition to the duties of several programs previously part of the New York State Department of Health and other commissions; several brand-new offices were created as well.

The same legislation relieved the new department of the duties of the former Conservation Department's Division of Parks; the jurisdiction of the former division instead became the independent New York State Office of Parks, Recreation and Historic Preservation.

1970s
In its first decade, it took the lead in helping the state comply with newly passed federal environmental legislation. DEC's work at Love Canal helped draw national attention to the problems posed by hazardous waste sites. It also worked to end General Electric's discharge of PCBs into the Hudson River, an issue that continues into. It implemented New York's first state-level endangered species list.

DEC also was put in charge of reviewing declarations filed under the State Environmental Quality Review Act (SEQRA), which mirrors federal laws. In 1972, voters approved the Environmental Quality Bond Act, which continues to provide funds for land acquisition, solid waste aid, sewage treatment, air pollution control and resource recovery. Its renewal in 1986 made possible remediation of many hazardous waste sites.

1980s
In the 1980s, DEC was given regulatory authority over storage, transportation, treatment and disposal of hazardous wastes. In this capacity, it helped New York end disposal of radioactive waste at West Valley. The legislature also passed a bottle bill, to be enforced and administered by DEC. The department's facilities at Whiteface Mountain and Mount Van Hoevenberg near Lake Placid were venues for several events at the 1980 Winter Olympic Games.

The decade also saw the department complete, with considerable volunteer help, New York's Atlas of Breeding Birds, a mammoth, exhaustive tome of great interest to birders and ornithologists. DEC efforts have also led to the restoration of several species in the state, including the bald eagle.

The state also began allowing its taxpayers to return a Gift to Wildlife on their income tax forms, providing money directly to DEC for conservation programs.

1990s
DEC actions against New York City led to a consent order requiring the city to operate the Fresh Kills landfill under its regulations, which led to its eventual closure. New York has seen an 80% reduction in its operating landfills since 1984. The department also obtained a memorandum of understanding with the city that eventually led to both tougher land-use regulations in the watersheds of its upstate reservoirs and economic development funds for the communities in them.

The 90 mile (140 km) Genesee Valley Greenway was created during this time on abandoned railbed and Genesee Valley Canal property. A new source of funding was opened up when the legislature created the state's Environmental Protection Fund.

The decade that saw New York come under its first Republican administration in 16 years had some worried that DEC would become more submissive to business interests. But the department remained active, taking the lead in establishing the state's Open Space Plan for future land acquisitions.

2000–2005

The summer of 2001 brought a major change to the department. Since its inception in 1970 the department's headquarters (central office) had been at 50 Wolf Road in Colonie, NY (the current headquarters of the New York State Department of Transportation). In the late 1990s then Gov. George Pataki decided the department needed a new home with views of the Hudson River. He authorized funding to build a new office tower at 625 Broadway in downtown Albany. The building was completed in April 2001 and by late August the approximately 1,500 central office DEC staff had been relocated to the new facility.

DEC employees were active in the cleanup after the September 11, 2001, terrorist attacks in New York City.

As part of the refinancing and reform the State Superfund Program in 2003, New York created the Brownfield Cleanup Program to mitigate threats to public health and the environment from contaminated sites. The initiative also the redevelopment of abandoned, contaminated properties to revitalize economically blighted communities. Additional regulations enacted in 2009 further improved New York's site remediation/redevelopment process.

Under the Waste Tire Management and Recycling Act of 2003, DEC developed a plan to manage and recycle used and discarded tires, and address non-complaint waste tire dumps in the state, which had an estimated 18-20 million scrap tires.

New York proposed and led the effort to create the Regional Greenhouse Gas Initiative (RGGI), a cap-and-trade program among seven northeastern states to lower carbon dioxide () emissions, a major contributor to global warming. RGGI was the first mandatory, market-based cap-and-trade program for  emission in U.S. history, and has grown to include nine states.

2006–2010
In 2006, the DEC started an investigation of Camp O'Ryan, the former New York Army National Guard training range in Wethersfield, New York. The concerns at this site included lead contamination from spent bullets, as well as alleged witnessed burial of cylinders of unknown origin. As of that date, DEC was contacting the New York State Division of Military and Naval Affairs and United States Army Corps of Engineers for further information about the range.

DEC created the Pollution Prevention Institute (P2I)<ref>Gallagher Gannett News Service, J. (2008, Mar 1). RIT center to help fight pollution - State gives Rochester college $6 million to design and test ``green manufacturing methods. Times Union, The (Albany, NY), p. A3</ref> in 2008 at the Rochester Institute of Technology (RIT) to bring together academic institutions, not-for-profit institutions and government entities to encourage and support the development of sustainable businesses and organizations, and reduce natural resource consumption and waste.

New York achieved its goal of conserving one million acres of open space, including critical forested lands in the Adirondack and Catskills mountains that are now open to outdoor recreation.

2011–2015

Under New York's Sewage Pollution Right to Know (SPRTK) law, publicly owned sewage systems and treatment works are required to report untreated and partially treated sewage discharges to DEC within two hours of the discharge, and also alert the public and adjoining municipalities of discharges within four hours.

DEC, in conjunction with other New York State agencies, updated safety procedures and emergency response preparedness