40 CFR Part 63, Subpart G, Table 32 to Subpart G of Part 63 - Typical Number of Roof Legs, a NF8

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There are 6 Updates appearing in the Federal Register for 40 CFR 63. View below or at eCFR (GPOAccess)
View PDF at GPO Pt. 63, Subpt. G, Table 32
Table 32 to Subpart G of Part 63—Typical Number of Roof Legs, a NF8
Tank diameter D (feet) b Pontoon roof No. of legs on double-deck roof
No. of pontoon legs No. of center legs
a This table should not supersede information based on actual tank data.
b If the actual diameter is between the diameters listed, the closest diameter listed should be used. If the actual diameter is midway between the diameters listed, the next larger diameter should be used.
30 4 2 6
40 4 4 7
50 6 6 8
60 9 7 10
70 13 9 13
80 15 10 16
90 16 12 20
100 17 16 25
110 18 20 29
120 19 24 34
130 20 28 40
140 21 33 46
150 23 38 52
160 26 42 58
170 27 49 66
180 28 56 74
190 29 62 82
200 30 69 90
210 31 77 98
220 32 83 107
230 33 92 115
240 34 101 127
250 34 109 138
260 36 118 149
270 36 128 162
280 37 138 173
290 38 148 186
300 38 156 200
310 39 168 213
320 39 179 226
330 40 190 240
340 41 202 255
350 42 213 270
360 44 226 285
370 45 238 300
380 46 252 315
390 47 266 330
400 48 281 345

Title 40 published on 2014-07-01

The following are only the Rules published in the Federal Register after the published date of Title 40.

For a complete list of all Rules, Proposed Rules, and Notices view the Rulemaking tab.

  • 2014-11-19; vol. 79 # 223 - Wednesday, November 19, 2014
    1. 79 FR 68777 - Reconsideration of Certain Startup/Shutdown Issues: National Emission Standards for Hazardous Air Pollutants From Coal- and Oil-Fired Electric Utility Steam Generating Units and Standards of Performance for Fossil-Fuel-Fired Electric Utility, Industrial-Commercial-Institutional, and Small Industrial-Commercial-Institutional Steam Generating Units
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      ENVIRONMENTAL PROTECTION AGENCY
      Final rule; notice of final action on reconsideration.
      The effective date of the rule is November 19, 2014.
      40 CFR Parts 60 and 63

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Title 40 published on 2014-07-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 40 CFR 63 after this date.

  • 2014-11-19; vol. 79 # 223 - Wednesday, November 19, 2014
    1. 79 FR 68777 - Reconsideration of Certain Startup/Shutdown Issues: National Emission Standards for Hazardous Air Pollutants From Coal- and Oil-Fired Electric Utility Steam Generating Units and Standards of Performance for Fossil-Fuel-Fired Electric Utility, Industrial-Commercial-Institutional, and Small Industrial-Commercial-Institutional Steam Generating Units
      GPO FDSys XML | Text
      ENVIRONMENTAL PROTECTION AGENCY
      Final rule; notice of final action on reconsideration.
      The effective date of the rule is November 19, 2014.
      40 CFR Parts 60 and 63