Summary of Changes to the Coastal Barrier Resources System.
Effective DatePublic LawFederal Register NoticeAffected Unit(s)Map DateAdditional Comments
8/16/2023 88 FR 55710116 CBRS units in Michigan, Minnesota, Mississippi, Ohio, South Carolina, Texas, and Wisconsin. See Federal Register for full list of affected units. 12/30/2022Visit the Service's webpage on the 5-Year Review.
3/12/2019Pub. L. 116-9 P30/P30P3/12/2019Visit the Service's archive for this map revision.
12/21/2018Pub. L. 115-358 59 CBRS units in Delaware, Florida, North Carolina, and South Carolina. Fifty-seven of these units were mapped through the Service’s Digital Mapping Pilot Project, and two of these units (Florida Units P31 and P31P) were mapped through a separate effort. See Pub. L. 115-358 for a full list of affected units.12/21/2018Visit the Service's archive for this map revision.
12/16/2016Pub. L. 114-314 NJ-02/NJ-02P, NJ-03P, NJ-04, NJ-15P, NJ-16P12/16/2016Visit the Service's archive for this map revision.
12/14/2016 81 FR 90375121 CBRS units in Louisiana, Puerto Rico, and the U.S. Virgin Islands. See Federal Register for full list of affected units.11/15/2016Visit the Service's archive for this map revision.
3/14/2016 81 FR 13407247 CBRS units in Alabama, Florida, Georgia, Louisiana, Michigan, Minnesota, Mississippi, New York (Great Lakes region), Ohio, and Wisconsin. See Federal Register for full list of affected units.1/11/2016Visit the Service's archive for this map revision.
2/29/2016Pub. L. 114-128 P15, P15P, P16, P16P, FL-63P2/29/2016Visit the Service's archive for this map revision.
5/4/2015 80 FR 25314182 CBRS units in Maine, Maryland, New Jersey, New York, North Carolina, and Virginia. See Federal Register for full list of affected units.8/1/2014Visit the Service's archive for this map revision.
12/18/2014Pub. L. 113-253 L07, L08, L09, RI-04P, RI-05P, RI-06, RI-07, FL-70, FL-70P, SC-01, SC-0312/18/2014Visit the Service's archive for this map revision.
4/17/2014 79 FR 2178769 CBRS units in Delaware, North Carolina, South Carolina, Florida, and Texas. See Federal Register for full list of affected units.12/6/2013Visit the Service's archive for this map revision.
10/15/2008Pub. L. 110-41974 FR 15743FL-64P10/15/2008 
10/16/2006Pub. L. 109-35472 FR 54278GA-06P10/16/2006 
10/16/2006Pub. L. 109-35572 FR 54278FL-95P, FL-9610/16/2006 
5/25/2006Pub. L. 109-226   The 2006 CBRRA directed the Service to finalize the pilot project and to prepare digital maps for the rest of the CBRS, including recommendations for expansion.
10/30/2004Pub. L. 108-38072 FR 54278P2510/30/2004 
10/18/2004Pub. L. 108-33972 FR 54278NC-07P10/18/2004 
12/1/2003Pub. L. 108-13872 FR 54278T07, T07P12/1/2003 
2/20/2003Pub. L. 108-768 FR 38087VA-59P, VA-60, VA-60P2/20/2003 
11/13/2000Pub. L. 106-514   The 2000 Coastal Barrier Reauthorization Act (CBRRA) mandated a digital mapping pilot project, covering no more than 75 units and no fewer than 50 units, to determine the feasibility and cost of creating digital maps for the entire CBRS.
10/27/2000Pub. L. 106-36066 FR 10734P19, P19P10/27/2000 
10/19/2000Pub. L. 106-33266 FR 10735NC-0110/19/2000 
12/9/1999Pub. L. 106-167   Pub. L. 106-167 redesignated the Coastal Barrier Resources System as the John H. Chafee Coastal Barrier Resources System John H. Chafee Coastal Barrier Resources System
Learn more about the John H. Chafee Coastal Barrier Resources System, which was established under the Coastal Barrier Resources Act in 1982.

Learn more about John H. Chafee Coastal Barrier Resources System .
12/6/1999Pub. L. 106-12865 FR 17671DE-03P12/6/1999 
11/29/1999Pub. L. 106-11665 FR 17671L03, NC-03P10/18/1999 
10/21/1998Pub. L. 105-27764 FR 41940P05, P05A, P10, P11, P11A, P18, P25, P32, P32P, FL-35, FL-35P, SC-03, M0911/12/1996; 10/21/1998Pub. L. 105-277 reinstated the 11/12/1996, maps revised by Pub. L. 104-333 that were previously invalidated by court order and revised four additional units.
3/5/1998  P05, P05A, P10, P11, P11A, P18, P25, P32, P32P The 11/12/1996 maps revised by Pub. L. 104-333 were invalidated by court order from the U.S. Federal District Court of DC.
2/24/1997 62 FR 8258ME-17, ME-18, MA-03, C01B, MA-20P, MA-24, C28, C31, D02B, NY-04P, NY-50, F10, NJ-09, MD-03, MD-37P, MD-38, VA-09, VA-23, VA-36, L07, L09, P16, P17, FL-89, FL-99, FL-101, Q01A, VI-077/12/1996Changes made administratively under Section 3 of Pub. L. 101-591 went into effect. This section allows for modifications to the CBRS boundaries to reflect changes that have occurred as a result of natural forces.
11/12/1996Pub. L. 104-33362 FR 28891P05, P05A, P10, P11, P11A, P18, P25, P32, P32P11/12/1996Changes made by Pub. L. 104-333 were later invalidated by the U.S. Federal District Court of DC.
10/9/1996Pub. L. 104-26562 FR 19125SC-0110/9/1996 
5/24/1996Pub. L. 104-14862 FR 19125NY-59P5/24/1996 
11/2/1994Pub. L. 103-46160 FR 10268NY-75, VA-62P, FL-05P, P11A, FL-15, FL-36P, P17, P17A, P18P, P19P, FL-72P, P31P, FL-95P, AL-01P, MI-2111/2/1994 
11/15/1993 58 FR 60288114 CBRS units in Massachusetts, Rhode Island, Connecticut, New York, Delaware, North Carolina, South Carolina, Georgia, Florida, Louisiana, Puerto Rico, Virgin Islands, Ohio, and Michigan were modified. See Federal Register for full list of affected units.10/15/1992Changes made administratively under Section 4(e) of Pub. L. 101-591 went into effect. This section allowed for minor and technical boundary modifications subsequent to the passage of the CBIA. Several of the units were revised for reasons other than boundary modifications, such as changes in map symbols.
10/23/1992Pub. L. 102-44058 FR 60288NC-01 (formerly NC-01P), NC-05P, VA-60, VA-60P10/23/1992 
11/16/1990Coastal Barrier Improvement Act (Pub. L. 101-591)56 FR 26304Most of the CBRS units created in 1982 were affected. New CBRS units and Otherwise Protected Areas (OPAs) were established along the Great Lakes, Atlantic, and Gulf coasts, as well as in the Florida Keys, Puerto Rico and the U.S. Virgin Islands.10/24/1990The Coastal Barrier Improvement Act (CBIA) reauthorized the CBRA and amended CBRA to modify existing units and expand the CBRS.
11/23/1988Great Lakes Coastal Barrier Act (Pub. L. 100-707)   The Great Lakes Coastal Barrier Act added a provision to the CBRA for the identification and addition to the CBRS of undeveloped coastal barriers coastal barriers
Learn more about coastal barrier landforms.

Learn more about coastal barriers along the shores of the Great Lakes.
4/22/1983 48 FR 17406A01A, A03C, C03A, C19A, C31, D02, D04, E02, F04,H00, L01, M09, P11, P18, P23, S01A, S02, S03, S05, S06, S07, S08, S09, S10, T02A, T03A, T114/18/1983Changes made administratively under Section 4(c) of Pub. L. 97-348 went into effect. This section allowed for minor and technical boundary modifications subsequent to the passage of the CBRA. Several of the units were revised for reasons other than boundary modifications, such as changes to the map scale.
12/31/1982Pub. L. 97-396 T02A and T03A (formerly T02 and T03, respectively)12/8/1982 
10/18/1982Coastal Barrier Resources Act (Pub. L. 97-348)47 FR 52388186 CBRS units in Maine, Massachusetts, Rhode Island, Connecticut, New York, Delaware, Virginia, North Carolina, South Carolina, Georgia, Florida, Alabama, Mississippi, Louisiana, and Texas were established. See Federal Register for full list of affected units.9/30/1982The Coastal Barrier Resources Act (CBRA) established the Coastal Barrier Resources System (CBRS) and prohibited new Federal expenditures and financial assistance (with limited exceptions as specified by the Act) within the units of the CBRS. The CBRA superseded the OBRA, resulting in CBRS units that were established by law rather than by an administrative action of the Secretary.
8/13/1981Omnibus Budget and Reconciliation Act (Pub. L. 97-35 Sec. 341(d))46 FR 58346  The Omnibus Budget and Reconciliation Act (OBRA) prohibited new flood insurance coverage on or after October 1, 1983, for new construction or substantial improvements located on undeveloped coastal barriers which were to be designated by the Secretary of the Interior (Secretary).