{"data":{"id":"us/14-cfr-appendix-e-to-part-420","jurisdiction":"us","citation":"14 CFR Appendix E to Part 420","heading":"Appendix E to Part 420—Tables for Explosive Site Plan","body":"Table E-1—Division 1.1 Distances to a Public Area or Public Traffic Route for NEW ≤450 lbs\nNEW (lbs.) Distance to public area (ft) 1 2 Distance to public traffic route distance (ft) 2\n≤0.5 236 142\n0.7 263 158\n1 291 175\n2 346 208\n3 378 227\n5 419 251\n7 445 267\n10 474 284\n15 506 304\n20 529 317\n30 561 337\n31 563 338\n50 601 361\n70 628 377\n100 658 395\n150 815 489\n200 927 556\n300 1085 651\n450 1243 746\n1 To calculate distance d to a public area from NEW:\nNEW ≤0.5 lbs: d = 236\n0.5 lbs \u003cNEW \u003c100 lbs: d = 291.3 + [79.2 *ln(NEW)]\n100 lbs ≤NEW ≤450 lbs: d = −1133.9 + [389 *ln(NEW)]\nNEW is in lbs; d is in ft; ln is natural logarithm.\nTo calculate maximum NEW given distance d (noting that d can never be less than 236 ft):\n0 ≤d \u003c236 ft: Not allowed (d cannot be less than 236 ft)\n236 ft ≤d \u003c658 ft: NEW = exp [(d/79.2)-3.678]\n658 ft ≤d \u003c1250 ft: NEW = exp [(d/389) + 2.914]\nNEW is in lbs; d is in ft; exp[x] is ex.\n2 The public traffic route distance is 60 percent of the distance to a public area.\nTable E-2—Division 1.1 Distance to Public Area and Public Traffic Route for NEW \u003e450 lbs\nNEW (lbs) Distance to public area (ft) 1 Distance to public traffic route (ft)\n450 lbs\u003cNEW ≤30,000 lbs 1,250 750.\n30,000 lbs\u003cNEW ≤100,000 lbs 40*NEW 1/3 0.60*(Distance to Public Area).\n100,000 lbs\u003cNEW ≤250,000 lbs 2.42*NEW 0.577 0.60*(Distance to Public Area).\n250,000 lbs\u003cNEW 50*NEW 1/3 0.60*(Distance to Public Area).\n1 To calculate NEW from distance d to a public area:\n1, 243 ft\u003cd ≤1,857 ft: NEW = d3/64,000\n1, 857 ft\u003cd ≤3,150 ft: NEW = 0.2162 * d 1.7331\n3,150 ft\u003cd: NEW = d3/125,000\nNEW is in lbs; d is in ft.\nTable E-3—Division 1.1 Intraline Distances 1 2 3\nNEW (lbs) Intraline Distance (ft)\n50 66\n70 74\n100 84\n150 96\n200 105\n300 120\n500 143\n700 160\n1,000 180\n1,500 206\n2,000 227\n3,000 260\n5,000 308\n7,000 344\n10,000 388\n15,000 444\n20,000 489\n30,000 559\n50,000 663\n70,000 742\n100,000 835\n150,000 956\n200,000 1,053\n300,000 1,205\n500,000 3 1,429\n700,000 1,598\n1,000,000 1,800\n1,500,000 2,060\n2,000,000 2,268\n3,000,000 2,596\n5,000,000 3,078\n1 To calculate intraline distance d from NEW:\nd = 18*NEW 1/3\nNEW is in pounds; d is in feet\n2 To calculate maximum NEW from given intraline distance d:\nNEW = d3/5,832\nNEW is in pounds; d is in feet.\n3 NEW values of more than 500,000 lbs only apply to liquid propellants with TNT equivalents equal to those NEW values. The intraline distances for NEW greater than 500,000 pounds do not apply to division 1.1 explosives.\nTable E-4—Division 1.3 Separation Distances\nNEW (lbs) Distance to public area or public traffic route (ft) 1 Intraline distance (ft) 2\n≤1000 75 50\n1,500 82 56\n2,000 89 61\n3,000 101 68\n5,000 117 80\n7,000 130 88\n10,000 145 98\n15,000 164 112\n20,000 180 122\n30,000 204 138\n50,000 240 163\n70,000 268 181\n100,000 300 204\n150,000 346 234\n200,000 385 260\n300,000 454 303\n500,000 569 372\n700,000 668 428\n1,000,000 800 500\n1,500,000 936 577\n2,000,000 1,008 630\n1 To calculate distance d to a public area or traffic route from NEW:\nNEW ≤1,000lbs\nd= 75 ft\n1,000 lbs\u003cNEW ≤96,000 lbs\nd = exp[2.47 + 0.2368*(ln(NEW)) + 0.00384*(ln(NEW))2]\n96,000 lbs\u003cNEW ≤1,000,000 lbs\nd = exp[7.2297−0.5984*(ln(NEW)) + 0.04046*(ln(NEW))2]\nNEW \u003e1,000,000 lbs\nd = 8*NEW 1/3\nNEW is in pounds; d is in feet; exp[x] is ex; ln is natural logarithm.\nTo calculate NEW from distance d to a public area or traffic route (noting that d cannot be less than 75 ft):\n0 ≤d \u003c75 ft:\nNot allowed (d cannot be less than 75 ft) for NEW ≤1000 lbs\n75 ft ≤d≤296 ft\nNEW = exp[−30.833 + (307.465 + 260.417*(ln(d)))1/2]\n296 ft\u003cd≤800 ft\nNEW = exp[7.395 + (−124.002 + 24.716*(ln(d)))1/2]\n800 ft\u003cd\nNEW = d3/512\nNEW is in lbs; d is in ft; exp[x] is ex; ln is natural logarithm\n2 To calculate intraline distance d from NEW:\nNEW ≤1,000 lbs\nd = 50 ft\n1,000 lbs\u003cNEW ≤84,000 lbs\nd = exp[2.0325 + 0.2488*(ln(NEW)) + 0.00313* (ln(NEW))2]\n84,000 lbs\u003cNEW ≤1,000,000 lbs\nd= exp[4.338−0.1695*(ln(NEW)) + 0.0221*(ln(NEW))2]\n1,000,000 lbs\u003cNEW\nd = 5*NEW 1/3\nNEW is in pounds; d is in feet; exp[x] is ex; ln is natural logarithm\nTo calculate NEW from an intraline distance d:\n0 ≤d \u003c50 ft:\nNot allowed (d cannot be less than 50 ft) for NEW ≤1000 lbs\n50 ft ≤d≤192 ft\nNEW = exp[−39.744 + (930.257 + 319.49*(ln(d)))1/2]\n192 ft\u003cd≤500 ft\nNEW = exp[3.834 + (−181.58 + 45.249*(ln(d)))1/2]\n500 ft≤d\nNEW = d3/125\nNEW is in pounds; d is in feet; exp[x] is ex; ln is natural logarithm\nTable E-5—Energetic Liquid Explosive Equivalents1 2 3\nEnergetic liquids TNT Equivalence TNT Equivalence\nStatic Test Stands Launch Pads.\nLO2/LH2 See Note 3 See Note 3.\nLO2/LH2 + LO2/RP-1 Sum of (see Note 3 for LO2/LH2) + (10% for LO2/RP1) Sum of (see Note 3 for LO2/LH2) + (20% for LO2/RP1).\nLO2/RP-1 10% 20% up to 500,000 lbs Plus 10% over 500,000 lbs\nIRFNA/UDMH 10% 10%.\nN2 04/UDMH + N2 H4 5% 10%.\n1 A launch site operator must use the percentage factors of table E-5 to determine TNT equivalencies of incompatible energetic liquids that are within an intraline distance of each other.\n2 A launch site operator may substitute the following energetic liquids to determine TNT equivalency under this table as follows:\nAlcohols or other hydrocarbon for RP-1\nH2 O2 for LO2 (only when H2 O2 is in combination with RP-1 or equivalent hydrocarbon fuel)\nMMH for N2 H4, UDMH, or combinations of the two.\n3 TNT equivalency for LO2/LH2 is the larger of:\n(a) TNT equivalency of 8*W2/3, where W is the weight of LO2/LH2 in lbs; or\n(b) 14 percent of the LO2/LH2 weight.\nTable E-6—Factors To Use When Converting Energetic Liquid Densities\nItem Density (lb/gal) Temperature ( °F)\nEthyl alcohol 6.6 68\nHydrazine 8.4 68\nHydrogen peroxide (90 percent) 11.6 68\nLiquid hydrogen 0.59 −423\nLiquid oxygen 9.5 −297\nRed fuming nitric acid (IRFNA) 12.9 77\nRP-1 6.8 68\nUDMH 6.6 68\nUDMH/Hydrazine 7.5 68\nTable E-7—Separation Distance Criteria for Storage of Hydrogen Peroxide in Concentrations of More than 91 Percent1 2\nQuantity (lbs) Intraline distance or distance to public area or distance to public traffic route (ft)\n10,000 510\n15,000 592\n20,000 651\n30,000 746\n50,000 884\n70,000 989\n100,000 1114\n150,000 1275\n200,000 1404\n300,000 1607\n500,000 1905\n1 Multiple tanks containing hydrogen peroxide in concentrations of greater than 91 percent may be located at distances less than those required by table E-7; however, if the tanks are not separated from each other by 10 percent of the distance specified for the largest tank, then the launch site operator must use the total contents of all tanks to calculate each intraline distance and the distance to each public area and each public traffic route.\n2 A launch site operator may use the equations below to determine permissible distance or quantity between the entries of table E-7:\nW \u003e10,000 lbs Distance = 24 * W1/3\nWhere Distance is in ft and W is in lbs.\nTo calculate weight of hydrogen peroxide from a distance d:\nd \u003e75 ft\nW = exp[−134.286 + 71.998*(ln(d)) −12.363*(ln(d))2 + 0.7229*(ln(d))3]\nTable E-8—Separation Distance Criteria for Storage of Liquid Hydrogen and Bulk Quantities of Hydrazine\nPounds of energetic liquid Pounds of energetic liquid Public area and intraline distance to incompatible energetic liquids Intraline distance to compatible energetic liquids Pounds of energetic liquid Pounds of energetic liquid Public area and intraline distance to incompatible energetic liquids Intraline distance to compatible energetic liquids\nOver Not Over Distance in feet Distance in feet Over Not Over Distance in feet Distance in feet\n60,000 70,000 1,200 130\n100 200 600 35 70,000 80,000 1,200 130\n200 300 600 40 80,000 90,000 1,200 135\n300 400 600 45 90,000 100,000 1,200 135\n400 500 600 50 100,000 125,000 1,800 140\n500 600 600 50 125,000 150,000 1,800 145\n600 700 600 55 150,000 175,000 1,800 150\n700 800 600 55 175,000 200,000 1,800 155\n800 900 600 60 200,000 250,000 1,800 160\n900 1,000 600 60 250,000 300,000 1,800 165\n1,000 2,000 600 65 300,000 350,000 1,800 170\n2,000 3,000 600 70 350,000 400,000 1,800 175\n3,000 4,000 600 75 400,000 450,000 1,800 180\n4,000 5,000 600 80 450,000 500,000 1,800 180\n5,000 6,000 600 80 500,000 600,000 1,800 185\n6,000 7,000 600 85 600,000 700,000 1,800 190\n7,000 8,000 600 85 700,000 800,000 1,800 195\n8,000 9,000 600 90 800,000 900,000 1,800 200\n9,000 10,000 600 90 900,000 1,000,000 1,800 205\n10,000 15,000 1,200 95 1,000,000 2,000,000 1,800 235\n15,000 20,000 1,200 100 2,000,000 3,000,000 1,800 255\n20,000 25,000 1,200 105 3,000,000 4,000,000 1,800 265\n25,000 30,000 1,200 110 4,000,000 5,000,000 1,800 275\n30,000 35,000 1,200 110 5,000,000 6,000,000 1,800 285\n35,000 40,000 1,200 115 6,000,000 7,000,000 1,800 295\n40,000 45,000 1,200 120 7,000,000 8,000,000 1,800 300\n45,000 50,000 1,200 120 8,000,000 9,000,000 1,800 305\n50,000 60,000 1,200 125 9,000,000 10,000,000 1,800 310","path":["Title 14—Aeronautics and Space","CHAPTER III—COMMERCIAL SPACE TRANSPORTATION, FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—LICENSING","PART 420—LICENSE TO OPERATE A LAUNCH SITE"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-14.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:20Z","sha256":"5cf72f2c4411a1b4d5eea70d1090032a233f2bab369aa853e30423a313d19f1b","source_id":"us-cfr","stale":true,"prev":"us/14-cfr-appendix-d-to-part-420","next":"us/14-cfr-433.1"},"notice":"GroundRules: Original legal text. Not legal advice."}