### Instructions for Completing the Process Data Template

This template is to be used to record the 30 daily averages of specific process data required by the ICR. The ERT does not have the capability to store these daily averages. This spreadsheet included 4 separate surrogate worksheets, in case the boiler tested is tested for all surrogates at 4 different dates. This spreadsheet is intended to be used for one boiler of one facility. Data for multiple boilers should be handled by using separate copies of this spreadsheet. yellow are required (if applicable to your boilers' operation). You do not need to populate cells shaded in gray, as they ar automatically populated from the Boiler Information worksheet. Please Do Not modify the structure of this spreadsheet by adding or subtracting rows, columns, cells. Please name each resulting spreadsheet with the following naming

convention: [FacilityID]_Unit_[BoilerID]_Processdata.xls (example: 8100_Unit_2_Processdata.xls).

Please refer to the following steps when using these spreadsheets.

Boiler Information Worksheet

Please enter the EIA Facility Code, Facility Name and Boiler ID of your boiler on the Boiler Information worksheet.

Process Data Worksheets

Please use one process data worksheet for each HAP surrogate even is simultaneous testing of different HAP surrogates was done.

### Instructions for Completing the Process Data Template

This template is to be used to record the 30 daily averages of specific process data required by the ICR. The ERT does not have the capability to store these daily averages. This spreadsheet included 4 separate surrogate worksheets, in case the This spreadsheet is intended to be used for one boiler of one facility. Data for multiple boilers should be handled by using separate copies of this spreadsheet. Fields shaded in yellow are required (if applicable to your boilers' operation). You do not need to populate cells shaded in gray, as they ar e Please Do Not modify the structure of this spreadsheet Please name each resulting spreadsheet with the following naming

convention: [FacilityID]_Unit_[BoilerID]_Processdata.xls (example: 8100_Unit_2_Processdata.xls).

Please enter the EIA Facility Code, Facility Name and Boiler ID of your boiler on the Boiler Information worksheet.

Please use one process data worksheet for each HAP surrogate even is simultaneous testing of different HAP surrogatesEIA

Facility Code Facility Name Boiler ID 121050233 Tampa Electric Power Company , Polk Power Station Unit No. 1Listed (by

boiler) in the Configuration Order Section of the Facility Unit Configurations Section of the Electronic ICRListed (by boiler) in the Configuration Order Section of the Facility Unit Configurations Section of the Electronic ICREIA

Facility Code Facility Name Boiler ID

121050233 Tampa Electric Power Company , Polk Power Station Unit No. 1

Daily A verage Process Data for a 30 Day Period Including the Testing Date Date Coal Firing Rate Coal Firing Rate (units) Synfuel Firing Rate Day 1 4/1/2010 364 Tons/day 6,754 Day 2 4/2/2010 370 Tons/day 6,697 Day 3 4/3/2010 371 Tons/day 6,655 Day 4 4/4/2010 363 Tons/day 6,615 Day 5 4/5/2010 356 Tons/day 6,657 Day 6 4/6/2010 359 Tons/day 6,662 Day 7 4/7/2010 359 Tons/day 6,654 Day 8 4/8/2010 370 Tons/day 6,637 Day 9 4/9/2010 366 Tons/day 6,700 Day 10 4/10/2010 353 Tons/day 6,237 Day 11 4/11/2010 223 Tons/day 3,928 Day 12 4/12/2010 378 Tons/day 6,732 Day 13 4/13/2010 375 Tons/day 6,716 Day 14 4/14/2010 366 Tons/day 6,716 Day 15 4/15/2010 358 Tons/day 6,701 Day 16 4/16/2010 373 Tons/day 6,691 Day 17 4/17/2010 364 Tons/day 6,707 Day 18 4/18/2010 369 Tons/day 6,709 Day 19 4/19/2010 370 Tons/day 6,672 Day 20 4/20/2010 365 Tons/day 6,684 Day 21 4/21/2010 391 Tons/day 6,668 Day 22 4/22/2010 381 Tons/day 6,694 Day 23 4/23/2010 381 Tons/day 6,741 Day 24 4/24/2010 387 Tons/day 6,765 Day 25 4/25/2010 373 Tons/day 6,747 Day 26 4/26/2010 376 Tons/day 6,740 Day 27 4/27/2010 361 Tons/day 6,738 Day 28 4/28/2010 366 Tons/day 6,722 Day 29 4/29/2010 361 Tons/day 6,724 Day 30 4/30/2010 367 Tons/day 6,732Daily A verage Process Data for a 30 Day Period Including the Testing Date Synfuel Firing Rate (units) Pet Coke Firing Rate Pet Coke Firing Rate (units) Coal Gas Firing Rate kscfh 1,455 Tons/day kscfh 1,478 Tons/day kscfh 1,485 Tons/day kscfh 1,450 Tons/day kscfh 1,426 Tons/day kscfh 1,438 Tons/day kscfh 1,437 Tons/day kscfh 1,480 Tons/day kscfh 1,466 Tons/day kscfh 1,410 Tons/day kscfh 890 Tons/day kscfh 1,511 Tons/day kscfh 1,498 Tons/day kscfh 1,463 Tons/day kscfh 1,431 Tons/day kscfh 1,493 Tons/day kscfh 1,454 Tons/day kscfh 1,478 Tons/day kscfh 1,482 Tons/day kscfh 1,462 Tons/day kscfh 1,563 Tons/day kscfh 1,523 Tons/day kscfh 1,522 Tons/day kscfh 1,549 Tons/day kscfh 1,493 Tons/day kscfh 1,506 Tons/day kscfh 1,446 Tons/day kscfh 1,465 Tons/day kscfh 1,443 Tons/day kscfh 1,468 Tons/dayCoal Gas Firing Rate (units) Fuel oil Firing Rate Fuel oil Firing Rate (units)Av erage Heat Input (MMBtu/hr) Steam Output (1,000 lbs steam/hr) 1,689 527 1,683 521 1,680 515 1,679 511 1,684 512 1,673 510 1,665 513 1,670 514 1,681 518 1,583 495 1,408 343 1,693 528 1,707 524 1,694 521 1,694 518 1,684 522 1,684 523 1,671 521 1,652 519 1,664 519 1,674 522 1,683 523 1,694 526 1,695 531 1,691 527 1,679 525 1,694 525 1,673 519 1,689 521 1,707 522Unit Net Electric Generation (MWh) Unit Gross Electric Generation (MWe) 4,127 170 4,111 170 4,124 170 4,117 170 4,120 170 4,130 171 4,127 171 4,123 171 4,128 170 3,654 162 2,119 125 4,115 170 4,114 170 4,116 171 4,117 170 4,115 170 4,120 170 4,118 170 4,121 170 4,121 170 4,119 170 4,117 170 4,110 170 4,116 170 4,117 170 4,115 170 4,115 170 4,117 170 4,114 170 4,117 170Control Device Operating Parameters, A s A ppicable Flue Gas Flow Rate (dscfm) Pressure Drop across FGD (in H2O) 772,100 770,067 773,283 772,350 773,850 774,700 774,250 773,350 771,817 736,383 675,250 769,267 771,050 771,933 769,900 770,317 770,900 767,533 769,167 770,767 769,483 767,433 774,450 776,533 774,317 769,433 768,067 769,483 774,967 780,417FGD Scrubber Liquor Flow Rate (gals/min) Sorbent Type Sorbent Injection Rate (lb/hr)Other Boiler or Control Device Operating Parameters (e.g., Boiler O2)

Flue Gas Pressure (atm) Flue Gas Sampling Point Temperature (Deg F) 323 321 319 318 318 318 320 319 321 322 313 324 322 319 318 322 322 321 321 323 326 327 328 328 327 330 327 325 325 325Flue Gas Oxygen Content (%) Flue Gas Carbon Dioxide Content (%) Flue Gas Moisture Content (%) 8.3 8.3 8.3 8.3 8.3 8.2 8.2 8.2 8.3 0.8 6.7 8.4 8.4 8.4 8.4 8.4 8.3 8.3 8.2 8.2 8.3 8.4 8.3 8.3 8.3 8.3 8.4 8.3 8.3 8.3EIA

Facility Code Facility Name Boiler ID

121050233 Tampa Electric Power Company , Polk Power Station Unit No. 1

Daily A verage Process Data for a 30 Day Period Including the Testing Date Date Coal Firing Rate Coal Firing Rate (units) Synfuel Firing Rate Day 1 4/1/2010 364 Tons/day 6,754 Day 2 4/2/2010 370 Tons/day 6,697 Day 3 4/3/2010 371 Tons/day 6,655 Day 4 4/4/2010 363 Tons/day 6,615 Day 5 4/5/2010 356 Tons/day 6,657 Day 6 4/6/2010 359 Tons/day 6,662 Day 7 4/7/2010 359 Tons/day 6,654 Day 8 4/8/2010 370 Tons/day 6,637 Day 9 4/9/2010 366 Tons/day 6,700 Day 10 4/10/2010 353 Tons/day 6,237 Day 11 4/11/2010 223 Tons/day 3,928 Day 12 4/12/2010 378 Tons/day 6,732 Day 13 4/13/2010 375 Tons/day 6,716 Day 14 4/14/2010 366 Tons/day 6,716 Day 15 4/15/2010 358 Tons/day 6,701 Day 16 4/16/2010 373 Tons/day 6,691 Day 17 4/17/2010 364 Tons/day 6,707 Day 18 4/18/2010 369 Tons/day 6,709 Day 19 4/19/2010 370 Tons/day 6,672 Day 20 4/20/2010 365 Tons/day 6,684 Day 21 4/21/2010 391 Tons/day 6,668 Day 22 4/22/2010 381 Tons/day 6,694 Day 23 4/23/2010 381 Tons/day 6,741 Day 24 4/24/2010 387 Tons/day 6,765 Day 25 4/25/2010 373 Tons/day 6,747 Day 26 4/26/2010 376 Tons/day 6,740 Day 27 4/27/2010 361 Tons/day 6,738 Day 28 4/28/2010 366 Tons/day 6,722 Day 29 4/29/2010 361 Tons/day 6,724 Day 30 4/30/2010 367 Tons/day 6,732Daily A verage Process Data for a 30 Day Period Including the Testing Date Synfuel Firing Rate (units) Pet Coke Firing Rate Pet Coke Firing Rate (units) Coal Gas Firing Rate kscfh 1,455 Tons/day kscfh 1,478 Tons/day kscfh 1,485 Tons/day kscfh 1,450 Tons/day kscfh 1,426 Tons/day kscfh 1,438 Tons/day kscfh 1,437 Tons/day kscfh 1,480 Tons/day kscfh 1,466 Tons/day kscfh 1,410 Tons/day kscfh 890 Tons/day kscfh 1,511 Tons/day kscfh 1,498 Tons/day kscfh 1,463 Tons/day kscfh 1,431 Tons/day kscfh 1,493 Tons/day kscfh 1,454 Tons/day kscfh 1,478 Tons/day kscfh 1,482 Tons/day kscfh 1,462 Tons/day kscfh 1,563 Tons/day kscfh 1,523 Tons/day kscfh 1,522 Tons/day kscfh 1,549 Tons/day kscfh 1,493 Tons/day kscfh 1,506 Tons/day kscfh 1,446 Tons/day kscfh 1,465 Tons/day kscfh 1,443 Tons/day kscfh 1,468 Tons/dayCoal Gas Firing Rate (units) Fuel oil Firing Rate Fuel oil Firing Rate (units)Av erage Heat Input (MMBtu/hr) Steam Output (1,000 lbs steam/hr) 1,689 527 1,683 521 1,680 515 1,679 511 1,684 512 1,673 510 1,665 513 1,670 514 1,681 518 1,583 495 1,408 343 1,693 528 1,707 524 1,694 521 1,694 518 1,684 522 1,684 523 1,671 521 1,652 519 1,664 519 1,674 522 1,683 523 1,694 526 1,695 531 1,691 527 1,679 525 1,694 525 1,673 519 1,689 521 1,707 522Unit Net Electric Generation (MWh) Unit Gross Electric Generation (MWe) 4,127 170 4,111 170 4,124 170 4,117 170 4,120 170 4,130 171 4,127 171 4,123 171 4,128 170 3,654 162 2,119 125 4,115 170 4,114 170 4,116 171 4,117 170 4,115 170 4,120 170 4,118 170 4,121 170 4,121 170 4,119 170 4,117 170 4,110 170 4,116 170 4,117 170 4,115 170 4,115 170 4,117 170 4,114 170 4,117 170Control Device Operating Parameters, A s A ppicable Flue Gas Flow Rate (dscfm) Pressure Drop across FGD (in H2O) 772,100 770,067 773,283 772,350 773,850 774,700 774,250 773,350 771,817 736,383 675,250 769,267 771,050 771,933 769,900 770,317 770,900 767,533 769,167 770,767 769,483 767,433 774,450 776,533 774,317 769,433 768,067 769,483 774,967 780,417FGD Scrubber Liquor Flow Rate (gals/min) Sorbent Type Sorbent Injection Rate (lb/hr)Other Boiler or Control Device Operating Parameters (e.g., Boiler O2)

Flue Gas Pressure (atm) Flue Gas Sampling Point Temperature (Deg F) 323 321 319 318 318 318 320 319 321 322 313 324 322 319 318 322 322 321 321 323 326 327 328 328 327 330 327 325 325 325Flue Gas Oxygen Content (%) Flue Gas Carbon Dioxide Content (%) Flue Gas Moisture Content (%) 8.3 8.3 8.3 8.3 8.3 8.2 8.2 8.2 8.3 0.8 6.7 8.4 8.4 8.4 8.4 8.4 8.3 8.3 8.2 8.2 8.3 8.4 8.3 8.3 8.3 8.3 8.4 8.3 8.3 8.3EIA

Facility Code Facility Name Boiler ID

121050233 Tampa Electric Power Company , Polk Power Station Unit No. 1

Daily A verage Process Data for a 30 Day Period Including the Testing Date Date Coal Firing Rate Coal Firing Rate (units) Synfuel Firing Rate Day 1 4/1/2010 364 Tons/day 6,754 Day 2 4/2/2010 370 Tons/day 6,697 Day 3 4/3/2010 371 Tons/day 6,655 Day 4 4/4/2010 363 Tons/day 6,615 Day 5 4/5/2010 356 Tons/day 6,657 Day 6 4/6/2010 359 Tons/day 6,662 Day 7 4/7/2010 359 Tons/day 6,654 Day 8 4/8/2010 370 Tons/day 6,637 Day 9 4/9/2010 366 Tons/day 6,700 Day 10 4/10/2010 353 Tons/day 6,237 Day 11 4/11/2010 223 Tons/day 3,928 Day 12 4/12/2010 378 Tons/day 6,732 Day 13 4/13/2010 375 Tons/day 6,716 Day 14 4/14/2010 366 Tons/day 6,716 Day 15 4/15/2010 358 Tons/day 6,701 Day 16 4/16/2010 373 Tons/day 6,691 Day 17 4/17/2010 364 Tons/day 6,707 Day 18 4/18/2010 369 Tons/day 6,709 Day 19 4/19/2010 370 Tons/day 6,672 Day 20 4/20/2010 365 Tons/day 6,684 Day 21 4/21/2010 391 Tons/day 6,668 Day 22 4/22/2010 381 Tons/day 6,694 Day 23 4/23/2010 381 Tons/day 6,741 Day 24 4/24/2010 387 Tons/day 6,765 Day 25 4/25/2010 373 Tons/day 6,747 Day 26 4/26/2010 376 Tons/day 6,740 Day 27 4/27/2010 361 Tons/day 6,738 Day 28 4/28/2010 366 Tons/day 6,722 Day 29 4/29/2010 361 Tons/day 6,724 Day 30 4/30/2010 367 Tons/day 6,732Daily A verage Process Data for a 30 Day Period Including the Testing Date Synfuel Firing Rate (units) Pet Coke Firing Rate Pet Coke Firing Rate (units) Coal Gas Firing Rate kscfh 1,455 Tons/day kscfh 1,478 Tons/day kscfh 1,485 Tons/day kscfh 1,450 Tons/day kscfh 1,426 Tons/day kscfh 1,438 Tons/day kscfh 1,437 Tons/day kscfh 1,480 Tons/day kscfh 1,466 Tons/day kscfh 1,410 Tons/day kscfh 890 Tons/day kscfh 1,511 Tons/day kscfh 1,498 Tons/day kscfh 1,463 Tons/day kscfh 1,431 Tons/day kscfh 1,493 Tons/day kscfh 1,454 Tons/day kscfh 1,478 Tons/day kscfh 1,482 Tons/day kscfh 1,462 Tons/day kscfh 1,563 Tons/day kscfh 1,523 Tons/day kscfh 1,522 Tons/day kscfh 1,549 Tons/day kscfh 1,493 Tons/day kscfh 1,506 Tons/day kscfh 1,446 Tons/day kscfh 1,465 Tons/day kscfh 1,443 Tons/day kscfh 1,468 Tons/dayCoal Gas Firing Rate (units) Fuel oil Firing Rate Fuel oil Firing Rate (units)Av erage Heat Input (MMBtu/hr) Steam Output (1,000 lbs steam/hr) 1,689 527 1,683 521 1,680 515 1,679 511 1,684 512 1,673 510 1,665 513 1,670 514 1,681 518 1,583 495 1,408 343 1,693 528 1,707 524 1,694 521 1,694 518 1,684 522 1,684 523 1,671 521 1,652 519 1,664 519 1,674 522 1,683 523 1,694 526 1,695 531 1,691 527 1,679 525 1,694 525 1,673 519 1,689 521 1,707 522Unit Net Electric Generation (MWh) Unit Gross Electric Generation (MWe) 4,127 170 4,111 170 4,124 170 4,117 170 4,120 170 4,130 171 4,127 171 4,123 171 4,128 170 3,654 162 2,119 125 4,115 170 4,114 170 4,116 171 4,117 170 4,115 170 4,120 170 4,118 170 4,121 170 4,121 170 4,119 170 4,117 170 4,110 170 4,116 170 4,117 170 4,115 170 4,115 170 4,117 170 4,114 170 4,117 170Control Device Operating Parameters, A s A ppicable Flue Gas Flow Rate (dscfm) Pressure Drop across FGD (in H2O) 772,100 770,067 773,283 772,350 773,850 774,700 774,250 773,350 771,817 736,383 675,250 769,267 771,050 771,933 769,900 770,317 770,900 767,533 769,167 770,767 769,483 767,433 774,450 776,533 774,317 769,433 768,067 769,483 774,967 780,417FGD Scrubber Liquor Flow Rate (gals/min) Sorbent Type Sorbent Injection Rate (lb/hr)Other Boiler or Control Device Operating Parameters (e.g., Boiler O2)

Flue Gas Pressure (atm) Flue Gas Sampling Point Temperature (Deg F) 323 321 319 318 318 318 320 319 321 322 313 324 322 319 318 322 322 321 321 323 326 327 328 328 327 330 327 325 325 325Flue Gas Oxygen Content (%) Flue Gas Carbon Dioxide Content (%) Flue Gas Moisture Content (%) 8.3 8.3 8.3 8.3 8.3 8.2 8.2 8.2 8.3 0.8 6.7 8.4 8.4 8.4 8.4 8.4 8.3 8.3 8.2 8.2 8.3 8.4 8.3 8.3 8.3 8.3 8.4 8.3 8.3 8.3EIA

Facility Code Facility Name Boiler ID

121050233 Tampa Electric Power Company , Polk Power Station Unit No. 1

Daily A verage Process Data for a 30 Day Period Including the Testing Date Date Coal Firing Rate Coal Firing Rate (units) Synfuel Firing Rate Day 1 4/1/2010 364 Tons/day 6,754 Day 2 4/2/2010 370 Tons/day 6,697 Day 3 4/3/2010 371 Tons/day 6,655 Day 4 4/4/2010 363 Tons/day 6,615 Day 5 4/5/2010 356 Tons/day 6,657 Day 6 4/6/2010 359 Tons/day 6,662 Day 7 4/7/2010 359 Tons/day 6,654 Day 8 4/8/2010 370 Tons/day 6,637 Day 9 4/9/2010 366 Tons/day 6,700 Day 10 4/10/2010 353 Tons/day 6,237 Day 11 4/11/2010 223 Tons/day 3,928 Day 12 4/12/2010 378 Tons/day 6,732 Day 13 4/13/2010 375 Tons/day 6,716 Day 14 4/14/2010 366 Tons/day 6,716 Day 15 4/15/2010 358 Tons/day 6,701 Day 16 4/16/2010 373 Tons/day 6,691 Day 17 4/17/2010 364 Tons/day 6,707 Day 18 4/18/2010 369 Tons/day 6,709 Day 19 4/19/2010 370 Tons/day 6,672 Day 20 4/20/2010 365 Tons/day 6,684 Day 21 4/21/2010 391 Tons/day 6,668 Day 22 4/22/2010 381 Tons/day 6,694 Day 23 4/23/2010 381 Tons/day 6,741 Day 24 4/24/2010 387 Tons/day 6,765 Day 25 4/25/2010 373 Tons/day 6,747 Day 26 4/26/2010 376 Tons/day 6,740 Day 27 4/27/2010 361 Tons/day 6,738 Day 28 4/28/2010 366 Tons/day 6,722 Day 29 4/29/2010 361 Tons/day 6,724 Day 30 4/30/2010 367 Tons/day 6,732Daily A verage Process Data for a 30 Day Period Including the Testing Date Synfuel Firing Rate (units) Pet Coke Firing Rate Pet Coke Firing Rate (units) Coal Gas Firing Rate kscfh 1,455 Tons/day kscfh 1,478 Tons/day kscfh 1,485 Tons/day kscfh 1,450 Tons/day kscfh 1,426 Tons/day kscfh 1,438 Tons/day kscfh 1,437 Tons/day kscfh 1,480 Tons/day kscfh 1,466 Tons/day kscfh 1,410 Tons/day kscfh 890 Tons/day kscfh 1,511 Tons/day kscfh 1,498 Tons/day kscfh 1,463 Tons/day kscfh 1,431 Tons/day kscfh 1,493 Tons/day kscfh 1,454 Tons/day kscfh 1,478 Tons/day kscfh 1,482 Tons/day kscfh 1,462 Tons/day kscfh 1,563 Tons/day kscfh 1,523 Tons/day kscfh 1,522 Tons/day kscfh 1,549 Tons/day kscfh 1,493 Tons/day kscfh 1,506 Tons/day kscfh 1,446 Tons/day kscfh 1,465 Tons/day kscfh 1,443 Tons/day kscfh 1,468 Tons/dayCoal Gas Firing Rate (units) Fuel oil Firing Rate Fuel oil Firing Rate (units)Av erage Heat Input (MMBtu/hr) Steam Output (1,000 lbs steam/hr) 1,689 527 1,683 521 1,680 515 1,679 511 1,684 512 1,673 510 1,665 513 1,670 514 1,681 518 1,583 495 1,408 343 1,693 528 1,707 524 1,694 521 1,694 518 1,684 522 1,684 523 1,671 521 1,652 519 1,664 519 1,674 522 1,683 523 1,694 526 1,695 531 1,691 527 1,679 525 1,694 525 1,673 519 1,689 521 1,707 522Unit Net Electric Generation (MWh) Unit Gross Electric Generation (MWe) 4,127 170 4,111 170 4,124 170 4,117 170 4,120 170 4,130 171 4,127 171 4,123 171 4,128 170 3,654 162 2,119 125 4,115 170 4,114 170 4,116 171 4,117 170 4,115 170 4,120 170 4,118 170 4,121 170 4,121 170 4,119 170 4,117 170 4,110 170 4,116 170 4,117 170 4,115 170 4,115 170 4,117 170 4,114 170 4,117 170Control Device Operating Parameters, A s A ppicable Flue Gas Flow Rate (dscfm) Pressure Drop across FGD (in H2O) 772,100 770,067 773,283 772,350 773,850 774,700 774,250 773,350 771,817 736,383 675,250 769,267 771,050 771,933 769,900 770,317 770,900 767,533 769,167 770,767 769,483 767,433 774,450 776,533 774,317 769,433 768,067 769,483 774,967 780,417FGD Scrubber Liquor Flow Rate (gals/min) Sorbent Type Sorbent Injection Rate (lb/hr)Other Boiler or Control Device Operating Parameters (e.g., Boiler O2)

Flue Gas Pressure (atm) Flue Gas Sampling Point Temperature (Deg F) 323 321 319 318 318 318 320 319 321 322 313 324 322 319 318 322 322 321 321 323 326 327 328 328 327 330 327 325 325 325Flue Gas Oxygen Content (%) Flue Gas Carbon Dioxide Content (%) Flue Gas Moisture Content (%) 8.3 8.3 8.3 8.3 8.3 8.2 8.2 8.2 8.3 0.8 6.7 8.4 8.4 8.4 8.4 8.4 8.3 8.3 8.2 8.2 8.3 8.4 8.3 8.3 8.3 8.3 8.4 8.3 8.3 8.3