Section 67.50-25 - Eighth Coast Guard District(a)Description. See § 3.40-1 of this chapter.(b)Lines of demarcation. The two lines of demarcation described in this section are for administrative purposes to distinguish between the areas in which structures shall be subject to Class "A", "B" or "C" requirements. The primary line of demarcation delimits the areas to the seaward of which Class "A" requirements are imposed. The secondary line of demarcation delimits the areas to the shoreward of which Class "C" requirements are imposed. In those areas where no secondary line of demarcation is prescribed, the structures shoreward of the primary line of demarcation are considered to be Class "C" structures. Class "B" requirements are imposed on the structures in the areas between the two lines of demarcation.(1) The coordinates of the primary line of demarcation within the jurisdiction of the District Commander are as follows:(i) Commencing at a point at Lat. 30°11'.3 N., Long. 88°03'.0 W., thence to;(ii) A point at Lat. 30°11'.5 N., Long. 88°31'.7 W., thence to;(iii) A point at Lat. 30°12'.7 N., Long. 88°58'.0 W., thence to;(iv) A point due west of (iii) at Long. 89°00' W., thence to;(v) A point at Lat. 30°08'.0 N., Long. 89°00' W., thence to;(vi) A point at Lat. 30°04'.7 N., Long. 88°53'.7 W., thence via a line two miles to seaward around Chandeleur Island to;(vii) A point at Lat. 29°34'.0 N., Long. 89°00' W., thence to;(viii) A point at Lat. 29°15'.0 N., Long. 89°00' W., thence to;(ix) A point at Lat. 29°14'.0 N., Long. 88°57'.7 W., thence to;(x) A point at Lat. 29°10'.0 N., Long. 88°57'.0 W., thence to;(xi) A point at Lat. 29°03'.6 N., Long. 89°02'.3 W., thence via the five fathom curve to;(xii) A point at latitude 28°58'.1 N., longitude 89°09'.6 W., thence to;(xiii) A point at latitude 28°57'.8 N., longitude 89°13'.6 W., thence to;(xiv) A point at latitude 28°57'.8 N., longitude 89°19'.5 W., thence to;(xv) A point at latitude 28°53'.8 N., longitude 89°25'.7 W., thence to;(xvi) A point at latitude 28°52'.6 N., longitude 89°25'.9 W., thence via the 10 fathom curve to;(xvii) A point at latitude 29°00' N., longitude 89°34'.0 W., thence to;(xviii) A point at latitude 29°00' N., longitude 90°05'.0 W., thence to;(xix) A point at latitude 28°46'.3 N., longitude 91°07'.5 W., thence to;(xx) A point at latitude 29°11'.5 N., longitude 92°21'.0 W., thence to;(xxi) A point at latitude 29°29'.0 N., longitude 92°32'.3 W., thence via the 5 fathom curve to;(xxii) A point at latitude 29°41'.2 N., longitude 93°19'.9 W., thence to;(xxiii) A point at latitude 29°38'.7 N., longitude 93°49'.4 W., thence to;(xxiv) A point on the 5 fathom curve at latitude 29°35'.8 N., longitude 94°00'' W., thence via the 5 fathom curve to;(xxv) A point at latitude 29°26'.7 N., longitude 94°30'.0 W., thence to;(xxvi) A point at latitude 28°55'.3 N., longitude 95°16'.3 W., thence to;(xxvii) A point at latitude 28°54'.9 N., longitude 95°15'.6 W., thence to;(xxviii) A point at latitude 28°19'.3 N., longitude 96°23'.3 W., thence to;(xxix) A point at latitude 27°49'.5 N., longitude 97°01'.2 W., thence to;(xxx) A point on the 10 fathom curve at latitude 27°30'.0 N., longitude 97°10'.0 W., thence via the 10 fathom curve to;(xxxi) A point at latitude 27°00' N., longitude 97°17'.5 W., thence to;(xxxii) A point at latitude 26°04'.1 N., longitude 97°08'.6 W.(2) The coordinates of the secondary line of demarcation within the jurisdiction of the District Commander are as follows:(i) Commencing at a point in Breton Sound at Lat. 29°34'.0 N., Long. 89°00'.0 W., thence to;(ii) A point at Lat. 29°30'.0 N., Long. 89°10'.0 W., thence to;(iii) A point at Lat. 29°20'.9 N., Long. 89°10'.0 W., thence to;(iv) A point at Lat. 29°15'.3 N., Long. 89°04'.0 W., thence to;(v) A point at Lat. 29°14'.1 N., Long. 88°59'.0 W., thence to;(vi) A point at Lat. 29°08'.6 N., Long. 88°58'.3 W., thence to;(vii) A point at Lat. 29°02'.1 N., Long. 89°06'.6 W., thence to;(viii) A point at Lat. 28°58'.1 N., Long. 89°08'.4 W., thence to;(ix) A point at Lat. 29°01'.1 N., Long. 89°16''.1 W., thence to;(x) A point at Lat. 28°53'.7 N., Long. 89°26'.0 W., thence to;(xi) A point at Lat. 28°54'.3 N., Long. 89°27'.5 W., thence to;(xii) A point at Lat. 29°02'.2 N., Long. 89°24'.2 W., thence to;(xiii) A point at Lat. 29°11'.8 N., Long. 89°30'.0 W., thence to;(xiv) A point at Lat. 29°17'.9 N., Long. 89°46'.6 W., thence to;(xv) A point at Lat. 29°17'.1 N., Long. 89°50'.8 W., thence to;(xvi) A point at Lat. 29°14'.5 N., Long. 89°55'.1 W., thence to;(xvii) A point at Lat. 29°10'.9 N., Long. 90°02'.9 W., thence to;(xviii) A point at Lat. 29°05'.5 N., Long. 90°10'.0 W., thence to;(xix) A point at Lat. 29°04'.5 N., Long. 90°12'.0 W., thence to;(xx) A point at Lat. 29°02'.0 N., Long., 90°20'.8 W., thence to;(xxi) A point at Lat. 29°01'.9 N., Long. 90°24'.9 W., thence to;(xxii) A point at Lat. 29°03'.6 N., Long. 90°32'.8 W., thence to;(xxiii) A point at Lat. 29°01'.9 N., Long. 90°41'.7 W., thence to;(xxiv) A point at Lat. 29°00'.8 N., Long. 90°50'.0 W., thence to;(xxv) A point at Lat. 29°02'.4 N., Long. 91°01'.5 W., thence to;(xxvi) A point at Lat. 29°28'.5 N., Long. 92°10'.1 W., thence to;(xxvii) A point at Lat. 29°31'.1 N., Long. 92°21'.8 W., thence to;(xxviii) A point at Lat. 29°34'.1 N., Long. 92°39'.3 W., thence to;(xxix) A point at Lat. 29°41'.1 N., Long. 92°57'.2 W., thence to;(xxx) A point at Lat. 29°44'.6 N., Long. 93°07'.9 W., thence to;(xxxi) A point at Lat. 29°45'.6 N., Long. 93°13'.7 W., thence to;(xxxii) A point at Lat. 29°45'.6 N., Long. 93°17'.3 W., thence to;(xxxiii) A point at Lat. 29°44'.3 N., Long. 93°21'.0 W., thence to;(xxxiv) A point at Lat. 29°45'.3 N., Long. 93°30'.0 W., thence to;(xxxv) A point at Lat. 29°43'.3 N., Long. 93°43'.7 W., thence to;(xxxvi) A point at Lat. 29°41'.0 N., Long. 93°48'.8 W., thence to;(xxxvii) A point at Lat. 29°38'.8 N., Long. 93°50'.8 W., thence to;(xxxviii) A point at Lat. 29°40'.0 N., Long. 93°57'.3 W., thence to;(xxxix) A point at Lat. 29°39'.3 N., Long. 94°05'.0 W., thence to;(xl) A point at Lat. 29°27'.0 N., Long. 94°37'.0 W., thence to;(xli) A point at Lat. 29°23'.1 N., Long. 94°42'.6 W., thence to;(xlii) A point at Lat. 29°20'.4 N., Long. 94°41'.5 W., thence to;(xliii) A point at Lat. 29°06'.6 N., Long. 95°04'.4 W., thence to;(xliv) A point at Lat. 29°04'.6 N., Long. 95°05'.7 W., thence to;(xlv) A point at Lat. 29°02'.0 N., Long. 95°10'.0 W., thence to;(xlvi) A point at Lat. 28°57'.3 N., Long. 95°16'.2 W., thence to;(xlvii) A point at Lat. 28°55'.3 N., Long. 95°17'.9 W., thence to;(xlviii) A point at Lat. 28°39'.5 N., Long. 95°48'.4 W., thence to;(xlix) A point at Lat. 28°32'.1 N., Long. 96°06'.9 W., thence to;(l) A point at Lat. 28°26'.4 N., Long. 96°17'.8 W., thence to;(li) A point at Lat. 28°23'.6 N., Long. 96°21'.5 W., thence to;(lii) A point at Lat. 28°19'.7 N., Long. 96°23'.3 W., thence to;(liii) A point at Lat. 28°19'.3 N., Long. 96°25'.2 W., thence to;(liv) A point at Lat. 28°14'.8 N., Long. 96°35'.0 W., thence to;(lv) A point at Lat. 28°09'.1 N., Long. 96°43'.8 W., thence to;(lvi) A point at Lat. 28°02'.4 N., Long. 96°52'.2 W., thence to;(lvii) A point at Lat. 27°56'.2 N., Long. 96°58'.3 W., thence to;(lviii) A point at Lat. 27°52'.8 N., Long. 97°01'.1 W., thence to;(lix) A point at Lat. 27°49'.3 N., Long. 97°03'.0 W., thence to;(lx) A point at Lat. 27°46'.4 N., Long. 97°05'.6 W., thence to;(lxi) A point at Lat. 27°38'.9 N., Long. 97°10'.6 W., thence to;(lxii) A point at Lat. 27°28'.3 N., Long. 97°16'.2 W., thence to;(lxiii) A point at Lat. 27°21'.9 N., Long. 97°18'.9 W., thence to;(lxiv) A point at Lat. 27°13'.7 N., Long. 97°21'.2 W., thence to;(lxv) A point at Lat. 27°05'.4 N., Long. 97°22'.3 W., thence to;(lxvi) A point at Lat. 26°57'.1 N., Long. 97°22'.2 W., thence to;(lxvii) A point at Lat. 26°48'.9 N., Long. 97°20'.9 W., thence to;(lxviii) A point at Lat. 26°39'.1 N., Long. 97°18'.1 W., thence to;(lxix) A point at Lat. 26°28'.8 N., Long. 07°14'.3 W., thence to;(lxx) A point at Lat. 26°18'.3 N., Long. 97°11'.3 W., thence to;(lxxi) A point at Lat. 26°11'.7 N., Long. 97°10'.2 W., thence to;(lxxii) A point at Lat. 26°04'.8 N., Long. 97°09'.3 W., thence to;(lxxiii) A point at Lat. 26°04'.2 N., Long. 97°08'.8 W., thence to;(lxxiv) A point at Lat. 25°58'.3 N., Long. 97°08'.3 W.(c)Seismographic and surveying operations.(1) All stakes and casings (pipes), except bamboo poles and wooden stakes less than 2 inches in diameter, placed in the water during seismographic or surveying operations shall be marked with flags during the daylight hours. Those casings remaining in place during the hours of darkness shall be marked by a red light as prescribed in Subpart 67.30 of this part.(2) All buoys used during seismographic operations shall be painted with international orange and white horizontal bands. The buoys shall be of light construction in order that they will not present a hazard to marine commerce.(d)Spoil marking.(1) All submerged spoil resulting from the dredging of channels, laying of pipelines, or any other operation, which constitutes an obstruction to navigation, shall be properly marked. The spoil banks should be examined at frequent intervals in order that the changing conditions may be kept under control. As markers are no longer required due to settling of banks, the Coast Guard will authorize their removal upon application.(2) All openings in such submerged spoil shall be marked by daybeacons on each side of the openings. When spoil is located on each side of a channel or pipe line, each bank will be considered separately. The daybeacons shall be equipped with arrows designating the safe water through the opening. These daybeacons may also be used as channel markers for the dredged channels providing they are also equipped with arrows designating the spoil bank openings.(3) When spoil banks constituting an obstruction to navigation abut an established traveled waterway, the outboard spoil bank markers shall be equipped with quick flashing lights described in Subpart 67.30 of this part, except that the color shall be in accordance with the provisions of Subpart 62.25 of Part 62 of this subchapter.(e)Applications. All applications for private aids to navigation and all correspondence dealing with private aids to navigation and obstruction lighting must be addressed to Commander (oan), Eighth Coast Guard District, Hale Boggs Federal Building, 501 Magazine Street, New Orleans, Louisiana 70130-3396.(f)Enclosures. Applicants shall append on a separate sheet with each application, the description, including manufacturer, of obstruction lights and sound signals.(g)Corps of Engineers correspondence. A copy of all correspondence directed to the District Engineer, Corps of Engineers, U.S. Army, in accordance with condition (i) of the Department of the Army permit, shall be forwarded to the District Commander for those operations conducted under permits authorizing the erection of structures in areas in which Class "A", Class "B", or Class "C" requirements must be met.CGFR 58-17, 23 FR 3377, May 20, 1958, as amended by CGFR 61-40, 26 FR 10353, Nov. 3, 1961; CGFR 65-34, 30 FR 9485, July 29, 1965; CGFR 68-95, 33 FR 15285, Oct. 15, 1968; USCG-2000-7223, 65 FR 40055 , June 29, 2000; USCG-2001-9286, 66 FR 33640 , June 25, 2001