Federal Register / Vol. 80, No. 27 / Tuesday, February 10, 2015 / Notices 7461 

can be found in Table 302.4 of 40 CFR 

302.4. 

Section 103(f)(2) of CERCLA provides 

facilities relief from this per-occurrence 

notification requirement if the 

hazardous substance release at or above 

the RQ is continuous and stable in 

quantity and rate. Under the Continuous 

Release Reporting Requirements 

(CRRR), to report such a release as a 

continuous release you must make an 

initial telephone call to the NRC, an 

initial written report to the EPA Region, 

and, if the source and chemical 

composition of the continuous release 

does not change and the level of the 

continuous release does not 

significantly increase, a follow-up 

written report to the EPA Region one 

year after submission of the initial 

written report. If the source or chemical 

composition of the previously reported 

continuous release changes, notifying 

the NRC and EPA Region of a change in 

the source or composition of the release 

is required. Further, a significant 

increase in the level of the previously 

reported continuous release must be 

reported immediately to the NRC 

according to section 103(a) of CERCLA. 

Finally, any change in information 

submitted in support of a continuous 

release notification must be reported to 

the EPA Region. 

The reporting of a hazardous 

substance release that is equal to or 

above the substance’s RQ allows the 

Federal government to determine 

whether a Federal response action is 

required to control or mitigate any 

potential adverse effects to public health 

or welfare or the environment. 

The continuous release of hazardous 

substance information collected under 

CERCLA section 103(f)(2) is also 

available to EPA program offices and 

other Federal agencies who use the 

information to evaluate the potential 

need for additional regulations, new 

permitting requirements for specific 

substances or sources, or improved 

emergency response planning. State and 

local government authorities and 

facilities subject to the CRRR use release 

information for purposes of local 

emergency response planning. Members 

of the public, who have access to release 

information through the Freedom of 

Information Act, may request release 

information for purposes of maintaining 

an awareness of what types of releases 

are occurring in different localities and 

what actions, if any, are being taken to 

protect public health and welfare and 

the environment. An agency may not 

conduct or sponsor, and a person is not 

required to respond to, a collection of 

information unless it displays a 

currently valid OMB control number. 

The OMB control numbers for EPA’s 

regulations in 40 CFR are listed in 40 

CFR part 9. 

Form Numbers: EPA Form 6100–10, 

Continuous Release Reporting Form 

Respondents/affected entities: Entities 

potentially affected by this action are 

not defined. The usage and release of 

hazardous substances are pervasive 

throughout industry. EPA expects a 

number of different industrial categories 

to report hazardous substance releases 

under the provisions of the CRRR. No 

one industry sector or group of sectors 

is disproportionately affected by the 

information collection burden. 

Respondent’s obligation to respond: 

Mandatory if respondents want to 

obtain reduced reporting for continuous 

releases. See the abstract for details. 

Estimated number of respondents: 

4,046. 

Frequency of response: On occasion. 

Total estimated burden: 325,582 

hours (per year). Burden is defined at 5 

CFR 1320.03(b). 

Total estimated cost: $17,236,727 (per 

year), includes $165,111 annualized 

capital or operation & maintenance 

costs. 

Changes in Estimates: There is an 

increase of 9,616 hours in the total 

estimated respondent burden compared 

with the ICR currently approved by 

OMB. This increase in burden results 

primarily from use of data on the actual 

number of continuous release reports 

from several regions and applying a 

growth rate consistent with prior years 

reporting. The average annual percent 

increase in facilities in the previous ICR 

was approximately 7.5%. The same 

percent increase was assumed for this 

ICR. The unit burden hours per 

respondent information collection 

activity remains the same as the 

previous ICR. 

Dated: February 3, 2015. 

Reggie Cheatham, 

Acting Director, Office of Emergency 

Management. 

[FR Doc. 2015–02694 Filed 2–9–15; 8:45 am] 

BILLING CODE 6560–50–P 

ENVIRONMENTAL PROTECTION 

AGENCY 

EPA–HQ–OAR–2002–0050; FRL–9922–75– 

OAR] 

National Emission Standards for 

Hazardous Air Pollutants 

(Radionuclides); Availability of 

Updated Compliance Model 

AGENCY: Environmental Protection 

Agency (EPA). 

ACTION: Notice of availability. 

SUMMARY: The Environmental Protection 

Agency (EPA) is announcing the 

availability of Version 4 of the CAP88– 

PC model. This version may be used to 

demonstrate compliance with the 

National Emission Standards for 

Hazardous Air Pollutants (NESHAP) 

applicable to radionuclides. CAP88–PC 

is approved for this use by EPA. Version 

4 has many changes and improvements 

from previous versions. The most 

significant of these changes from a user 

perspective are the incorporation of agedependent radionuclide dose and risk 

factors for ingestion and inhalation, the 

increase in the number of included 

radionuclides, and a change in the file 

management system used by the 

program. Other changes less visible to 

the user include new code architecture, 

incorporation of numerical solvers for 

the calculation of radioactive decay 

chains, including the ingrowth of decay 

products during air transport and 

ground surface deposition, enhanced 

error messages, updated on-line help, 

and a utility for migrating Version 3 

datasets, wind files and population files 

to Version 4. The modifications have 

produced a significant improvement in 

speed and stability for Version 4 relative 

to Version 3, and eliminated the 

solution approximations used in 

Version 3. 

FOR FURTHER INFORMATION CONTACT: Reid 

J. Rosnick, Office of Radiation and 

Indoor Air, Radiation Protection 

Division (6608T), U.S. Environmental 

Protection Agency, 1200 Pennsylvania 

Avenue NW., Washington, DC 20460; 

telephone number: (202) 343–9200; fax 

number: (202) 343–2304; email address: 

rosnick.reid@epa.gov. 

SUPPLEMENTARY INFORMATION: 

I. General Information 

A. Does this action apply to me? 

You may be potentially affected by 

this action if you are subject to the 

requirements for radionuclide NESHAP 

found in 40 CFR part 61, subpart H. 

This subpart applies to Department of 

Energy (DOE) facilities. 

B. How can I get copies of the model 

and other related information? 

1. Docket. EPA has established a 

docket for this action under Docket ID 

No. EPA–HQ–OAR–2002–0050; FRL– 

9922–75–OAR. Publicly available 

docket materials are available either 

electronically through 

www.regulations.gov or in hard copy at 

the Air and Radiation Docket in the EPA 

Docket Center (EPA/DC), EPA West, 

Room B 102, 1301 Constitution Avenue 

NW., Washington, DC. The EPA Docket 

Center Public Reading Room is open 


rljohnson on DSK3VPTVN1PROD with NOTICES
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from 8:30 a.m. to 4:30 p.m., Monday 

through Friday, excluding legal 

holidays. The telephone number for the 

Public Reading Room is (202) 566–1744, 

and the telephone number for the Air 

and Radiation Docket is (202) 566–1742. 

2. Electronic Access. You may access 

this Federal Register document 

electronically through the EPA Web site 

under the ‘‘Federal Register’’ listings at 

http://www.epa.gov/fedrgstr/. 

3. EPA Web site. You may download 

the CAP88–PC model and 

documentation from EPA’s Web site at 

http://www.epa.gov/radiation/

assessment/CAP88/index.html. 

II. Background 

On December 15, 1989, EPA 

promulgated the National Emission 

Standards for Hazardous Air Pollutants 

(NESHAPs) under section 112 of the 

Clean Air Act to control radionuclide 

emissions to the ambient air from a 

number of different source categories 

(54 FR 51654, December 15, 1989 

(Docket EPA–HQ–OAR–2002–0050– 

0028)). Subpart H of 40 CFR part 61 is 

one of the source categories covered in 

the 1989 final rule. Facilities owned and 

operated by the Department of Energy 

(DOE) are regulated under subpart H. 

DOE administers many facilities across 

the country, including governmentowned, contractor-operated facilities. 

Some of these facilities handle 

significant amounts of radioactive 

material that could potentially be 

emitted into the air in various chemical 

and physical states. The purpose of 

subpart H is to limit radionuclide 

emissions (not including radon) from 

the stacks and vents at DOE facilities so 

that no member of the public receives 

an effective dose equivalent of more 

than 10 millirems per year (mrem/yr) or 

in SI units 0.1 millisievert per year 

(mSv/yr). See 40 CFR 61.92. 

III. CAP88–PC Model for Demonstrating 

Compliance 

A. CAP88–PC History 

EPA is today announcing the 

availability of Version 4 of the CAP88– 

PC model for use in subpart H. Section 

63.93(a) states: ‘‘To determine 

compliance with the standard, 

radionuclide emissions shall be 

determined and effective dose 

equivalent values to members of the 

public calculated using EPA approved 

sampling procedures, computer models 

CAP–88 or AIRDOS–PC, or other 

procedures for which EPA has granted 

prior approval.’’ 

CAP88 (Clean Air Act Assessment 

Package–1988) is a set of computer 

programs, databases and associated 

utility programs for estimation of dose 

and risk from radionuclide emissions to 

the air. CAP88–PC implements, on the 

personal computer platform, modified 

versions of the AIRDOS–EPA and 

DARTAB codes that were written in 

FORTRAN 77 and executed in a 

mainframe computing environment. 

CAP88–PC provides for dose and risk 

assessments of collective populations, 

maximally-exposed individuals and 

selected individuals. The original 

CAP88–PC software package, Version 

1.0 allowed users to perform fullfeatured dose and risk assessments in a 

DOS environment for the purpose of 

demonstrating compliance with the 

standard in 40 CFR 61.92; it was 

approved for compliance demonstration 

in February 1992. 

CAP88–PC Version 2.0 provided a 

framework for developing inputs to 

perform full-featured dose and risk 

assessments in a Windows environment 

for the purpose of demonstrating 

compliance with the standard in 40 CFR 

61.92. Version 2.0 was approved for 

compliance demonstration in 1999. 

Version 2.1 included some additional 

changes compared to the DOS version 

and the previous Windows version 2.0. 

The changes included the addition of 

more decay chains, improvements in the 

Windows code error handling and a 

modified nuclide data input form. 

Section 1.6 of the CAP88–PC Version 3 

User’s Guide provides a summary of the 

changes incorporated into Version 2.1 

relative to Version 2.0. 

CAP88–PC Version 3.0, released in 

2007, was a significant update to 

Version 2.1. Version 3 incorporated 

dose and risk factors from Federal 

Guidance Report 13, ‘‘Cancer Risk 

Coefficients for Environmental Exposure 

to Radionuclides’’ (FGR 13) in place of 

the RADRISK data that was used in 

previous versions. In addition, the 

CAP88–PC database, the user interface, 

input files and output files were 

modified to accommodate the FGR 13 

data formats and nomenclature. Section 

1.7 of the CAP88–PC Version 3 User’s 

Guide describes the modifications 

incorporated into Version 3 relative to 

Version 2.1. 

CAP88–PC Version 4 is a significant 

update to Version 3. While keeping the 

main computer code used to conduct 

the calculations unmodified, 

modifications have been made to add 

flexibility, enhance stability of the code, 

and make it easier for the user to use 

while also improving the quality 

assurance of the modeling. The most 

significant of these changes from a user 

perspective are the incorporation of agedependent radionuclide dose and risk 

factors for ingestion and inhalation (the 

use of which is specified by the user), 

the increase in the number of included 

radionuclides, and a change in the file 

management system used by the 

program. Other changes less visible to 

the user include new code architecture, 

incorporation of numerical solvers for 

the calculation of radioactive decay 

chains, including the ingrowth of decay 

products during air transport and 

ground surface deposition, enhanced 

error messages, updated on-line help, 

and a utility for migrating Version 3 

datasets, wind files and population files 

to Version 4. The modifications have 

produced a significant improvement in 

speed and stability for Version 4 relative 

to Version 3, and eliminated the 

solution approximations used in 

Version 3. EPA has implemented an 

extensive testing and documentation 

program for CAP88–PC Version 4 to 

address user concerns with past 

versions. This enhanced documentation 

has allowed for greater compatibility 

with user software quality assurance 

programs. The total number of 

radionuclides available has been 

increased from 825 in Version 3 to 1,252 

in Version 4. The maximum number of 

radionuclides that can be included in 

any single case is increased from 256 in 

Version 3 to 500 in Version 4. 

B. CAP88–PC Model Summary 

All versions of CAP88–PC use a 

modified Gaussian plume equation to 

estimate the average dispersion of 

radionuclides released from up to six 

types of sources. The sources may be 

either elevated stacks, such as a 

smokestack, or uniform sources, such as 

a pile of uranium mill tailings. ‘‘Plume 

rise’’ can be calculated assuming either 

a momentum or buoyant-driven plume. 

Assessments are made for a circular grid 

of distances and directions for a radius 

of up to 80 kilometers (50 miles) around 

the source. The Gaussian plume model 

produces results that agree with 

experimental data as well as any model, 

is fairly easy to work with and is 

consistent with the random nature of 

turbulence. Site-specific information on 

population location and meteorological 

conditions is provided to CAP88–PC as 

input files developed by the user. The 

formats for these input files have not 

changed from the original mainframe 

version of the CAP88 code package. 

CAP88–PC Version 4 is a significant 

modification intended to improve 

usability, increase stability by 

complying with the write restrictions on 

system folders, enhance the modeling 

methodology, update the dataset 

formats, and provide a more 

maintainable code base and 

documentation set for the future. 


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1http://www.epa.gov/radiation/federal/

techdocs.html. 

2http://www.epa.gov/ncea/efh/pdfs/efhcomplete.pdf. 

Version 4 now provides age-dependent 

dose and risk factors and introduces a 

new code architecture that conforms to 

updated coding standards and data 

formats. The data updates include 

adoption of the ingestion and inhalation 

age and particle size dependent dose 

and risk factor data supplied by Oak 

Ridge National Laboratory in the 

DCFPAK Version 2.2 model,1 and agedependent ingestion and inhalation 

rates from the EPA,2 The DCFPAK 

Version 2.2 external dose rate 

coefficients used in CAP88–PC Version 

4 are not explicitly age-dependent. The 

external coefficients are calculated for 

adults but are applicable to all age 

groups. 

CAP88–PC Version 4 not only adds 

significant features, but also redesigns 

the user interface (UI) experience to 

make it more similar to that of other 

programs developed for Microsoft 

Windows. The application uses the 

Microsoft. Net Framework Version 4, 

and the Microsoft Visual Studio 2010 

development environment, to support 

security and connectivity models in 

Windows 7. The window structure 

presented to the user is in general 

unchanged from earlier versions but has 

been updated to provide more flexible 

data entry, to include the new data 

fields mentioned earlier, and to 

eliminate the use of an intermediate 

database to relate filenames to datasets. 

The layout of the UI forms has been 

modified to include sub-windows that 

provide a running record of dataset 

modifications since the dataset was last 

saved, and provide real-time errors and 

warnings generated by the entry 

validation tests. The database of uptake 

and radionuclide-specific information is 

now in eXtensible Markup Language 

(XML) format, making it more accessible 

to the user and to other applications. 

One consequence of the move to an 

updated development and data 

environment is the fact that CAP88–PC 

Version 4 can only be installed on 

Windows XP Service Pack 3 and later 

operating systems. 

The CAP88–PC Version 4 software 

was developed using a structured 

software engineering methodology that 

included adoption of a defined software 

architecture, rigorous source control, 

independent verification of source code 

as it was being implemented, multiple 

phases of testing, and configuration 

control of the documentation and the 

code as development progressed. 

To conform to Windows 7 security 

requirements, and to improve usability, 

CAP88–PC Version 4 includes many 

significant changes to input and output 

file handling. Case-specific input and 

output data files are now stored by 

default in the user’s Windows profile 

folders, rather than in the application’s 

Program Files folder. For example, the 

default primary CAP88–PC Version 4 

folder location in Windows 7 would be 

c:\Users\xxxx\Documents\CAP88 for a 

username of xxxx. This was required 

because Windows Vista and 7 security 

improvements restrict writing files to 

the Program Files folder. 

CAP88–PC Version 4 input datasets 

can be stored in their own folders, as 

subfolders of the Datasets folder. As an 

example, for the Modtest dataset 

included with the Version 4 distribution 

set, the folder holding the dataset and 

all associated data files and reports 

would be located at c:\Users\xxxx\

Documents\CAP88\Datasets\Modtest. 

Datasets are recommended to be put 

into their own folders, because using 

this data storage structure will make use 

of the code easier and management of 

case data simpler. Reports (formerly 

called ‘‘Output’’) are always stored in 

the same folder as the dataset. 

Population and wind files can be stored 

with the dataset or in the default 

Population/Wind folders. However, 

CAP88–PC Version 4 will preferentially 

use the population and wind files 

located in the dataset. This improves 

sharing dataset information between 

organizations, and simplifies 

configuration management of cases 

because all pertinent case records (input 

and report files) are stored together. A 

user can send a dataset, its population 

and wind files, and its reports to 

another user, who can open them, using 

CAP88–PC Version 4 or any text editor, 

confident that the proper files are being 

used. 

As was the case with Version 3, 

Version 4 is not backward compatible, 

and datasets generated using Version 3 

cannot be used directly by Version 4. 

This is the result of many factors, 

including the addition of age-specific 

data and the inclusion of many more 

nuclides than in previous versions. 

However, Version 4 includes a dataset 

migration utility that upgrades many 

Version 3 datasets to the Version 4 

format. The migration utility runs on 

first use and is also available on demand 

from the Tools>Options drop-down 

menu. The migration utility will move 

Version 3 database files, input dataset 

files, population files, and wind files 

from the format used with the 9 

December 2007 release of Version 3 to 

their respective Version 4 formats. The 

folder locations of the Version 3 files 

being migrated and the locations for the 

Version 4 files being generated are 

selectable by the user or the utility will 

select the default locations for those 

files. 

The overall principle of the new 

architecture was to optimize the code by 

performing data manipulation in the UI 

and computational functions in 

FORTRAN. CAP88–PC Version 4 has 

accomplished this by having the UI 

collect the user input data, read the 

associated databases, generate the dose 

and risk factors from the DCFPAK data, 

then build and write the case dataset. 

The UI also handles all program 

interactions with the file system. The 

FORTRAN computational sub-system 

now performs all decay and ground 

surface buildup calculations along with 

all the air dispersion, deposition, intake, 

dose and risk calculations. The only file 

manipulation performed by the 

FORTRAN sub-system is reading the 

dataset files and writing report files. The 

data system used in CAP88–PC Version 

4 has access to information for all 1,252 

radionuclides contained in DCFPAK 

Version 2.2, 737 of which have internal 

dose and risk factors. A significant 

change in Version 4 is the fact that 

radionuclides in the database having 

external but no internal dose factors is 

flagged to the user during radionuclide 

selection. This is an improvement over 

Version 3, where the code would 

produce a database read error when 

encountering a radionuclide having an 

external but no internal dose conversion 

factors. Flagging these radionuclides 

permits analysis to be performed in 

situations where only the external dose 

is of concern, but also creates the 

potential for under-reporting dose when 

a radionuclide with no internal dose 

factors is included in the case. Users 

must now be aware that when a 

radionuclide has no internal dose 

factors, an independent method, such as 

surrogates, must be used to account for 

internal dose resulting from intake of 

these radionuclides in a CAP88–PC 

Version 4 case. 

C. Validation of the CAP88–PC Version 

4 Model 

The CAP88–PC Version 4 program 

represents one of the best available 

validated codes for the purpose of 

making comprehensive dose and risk 

assessments. The Gaussian plume 

model used in CAP88–PC to estimate 

dispersion in air is one of the most 

commonly used models for dispersion 

modeling. It produces results that agree 

with experimental data as well as any 

model, is fairly easy to work with, and 

is consistent with the random nature of 


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3EPA–HQ–OAR–2002–0050–0004. 

turbulence. Version 4 has not modified 

the basic Gaussian plume algorithm 

used by the AIRDOS module of CAP88– 

PC, and comparison cases between 

Versions 4 and 3 have been run. 

EPA’s Office of Radiation and Indoor 

Air (ORIA) has reviewed and verified 

through testing the contractor’s initial 

testing and quality assurance results. 

The report 3 can be found at http://

www.epa.gov/radiation/assessment/

CAP88/index.html. 

The testing report includes a 

description of the testing of the user 

interface; a description of the six test 

cases used to test the incorporation of 

age-specific dose factors; a description 

of the seventh test case verifying the 

calculation of air concentrations and 

working levels for radon-only test cases; 

a description of the 31 issues identified 

by ORIA and the corrective actions that 

resolved those issues; a brief 

biographical sketch describing the 

independence and qualifications of the 

independent tester; and conclusions 

drawn from the testing. 

As part of the software testing, the 

user interface was extensively tested. 

The testing verified that the interface 

only accepted: 

(1) Positive distances less than or 

equal to 80 kilometers (km) for receptor 

distances; 

(2) Non-negative release rates; 

(3) Annual precipitation amounts 

between 0.01 and 500 centimeters per 

year (cm/yr); 

(4) Annual ambient temperatures 

between ¥100 and 100 degrees Celsius 

(°C); 

(5) Lid heights between 25 and 10,000 

meters (m); 

(6) Non-negative source heights, and 

positive source diameters or areas; 

(7) Non-negative heat release rates, 

exit velocities and fixed plume rises; 

and, 

(8) Agricultural fractions that summed 

to unity. 

All issues identified with the interface 

have been resolved and closed. 

Seven test cases were developed to 

test the capabilities of CAP88–PC 

Version 4. Six of these cases involve the 

calculation of dose and risk to an 

individual or population at the location 

identified by the model as that of the 

maximally exposed individual (MEI) or 

specified by the user. The testing 

objectives for these six cases include the 

following verifications: 

(1) Dose factors agree with those 

calculated using the Dose Coefficient 

Data File Package from Oak Ridge 

National Laboratory, Version 2.2 

(DCFPAK2.2) to 1% or less; 

(2) Values of Chi-over-Q (c/Q) agree 

within 1% with those calculated using 

CAP88–PC version 3.1, including but 

not limited to the direction of the MEI 

(the calculated values for c/Q showed 

good agreement between Versions 3.1 

and 4 in all directions); 

(3) Air concentrations and deposition 

rates (where applicable) agree within 

1% with those calculated using CAP88– 

PC Version 3.1; and, 

(4) Results for dose rates and risks 

agree within 5% with independent 

calculations; the 5% criteria was used 

here to allow for differences caused by 

different modeling methods. 

The objective of Test Case 7 was to 

verify the CAP88–PC Version 4 

calculations of the air concentrations 

and working levels for radon-only are 

consistent with Version 3.1. 

D. Limitations of the CAP88–PC Model 

Like all models, there are some 

limitations in the CAP88–PC system. 

While up to six stacks or sources can be 

modeled, all the sources are modeled as 

if located at the same point; that is, 

stacks cannot be located in different 

areas of a facility. The same plume rise 

mechanism (buoyant or momentum) is 

used for each source. Also, multiple 

sources are treated as uniform. Variation 

in radionuclide concentrations due to 

complex terrain cannot be modeled. 

Errors arising from these assumptions 

will have a negligible effect for 

assessments where the distance of 

exposed individuals is large compared 

to the stack height, area or facility 

emissions. 

E. Use of CAP88–PC Version 4 for 

Compliance Purposes 

One of the primary requirements 

driving the production of CAP88–PC 

Version 4 was the desire to incorporate 

the age-specific dose conversion factors 

and intake rates contained in DCFPAK 

Version 2.2. The code now allows the 

user to select the ingestion and 

inhalation dose conversion and intake 

rates from the age groups modeled in 

DCFPAK Version 2.2, infant (100 days 

old), one-year old, five-year old, tenyear old, fifteen-year old, and adult. To 

accommodate this, many variables 

across the entire code have increased 

dimensionality and the dataset structure 

required significant modification. The 

need to examine the entire code base in 

order to include age-dependency drove 

the decision to look for a new 

architecture that would enhance the 

performance and maintenance of 

CAP88–PC both in Version 4 and future 

versions. 

Additionally, our in-house analysis of 

calculated doses between Versions 3 

and 4 has shown that the dose in 

Version 4 is usually less than the dose 

in Version 3. This is primarily because 

we have updated the intake factors in 

Version 4 to be consistent with the latest 

version of the EPA Exposure Factors 

Handbook. Therefore, the user will 

likely see lower calculated doses in 

Version 4 for the source term and 

receptor. 

F. Summary of Changes for CAP88–PC 

Version 3 to Version 4 

Version 4 of CAP88–PC is a 

significant update from Version 3. 

CAP88–PC Version 4 not only added 

significant features, but also redesigned 

the interface to give the user a more 

standard experience. The entire user 

interface module was re-written for 

Version 4 using VB.Net, the 

Microsoft.Net Framework Version 4, 

and the Visual Studio 2010 

development environment, in order to 

better comply with updated code 

standards in Windows 7 and Windows 

8. To conform to recent Windows 

security requirements, and to improve 

usability, the following additional 

significant changes were made: 

Modeling and Architecture 

(1) All DCFPAK Version 2.2 nuclides 

are included. Nuclides in the database 

having external but not internal dose 

factors are flagged to the user rather 

than crashing the run. NOTE: the user 

must account for internal dose resulting 

from intake of these radionuclides using 

other methods, such as surrogates. 

(2) Age-specific data is now returned 

for dose, risk, and inhalation/ingestion 

rate values. 

(3) Nuclide Release Rates less than 

1.000e-25 Ci/yr (e.g., ‘‘0’’) or greater 

than 7.92e+28 are no longer allowed. A 

FORTRAN numerical solver is now 

used to calculate decay-in-flight and 

ground build up concentrations for each 

sector. The time for decay in flight is 

calculated using the annual Pasquill 

category-averaged wind speed for each 

direction. 

(4) Up to 500 radionuclides can be 

included in any case. The 500 limit 

includes both the nuclides released by 

the stacks and their progeny. 

(5) Whole body and organ dose and 

risk factors are from DCFPAK Version 

2.2. The data include six age groups; 

infant (100 days old), 1 year old, 5 years 

old, ten years old, fifteen years old, and 

adult. 

(6) Age-specific inhalation and 

ingestion data developed by the U.S. 

Environmental Protection Agency have 

been included for the above age groups. 

(7) The FORTRAN computational 

code has been consolidated into one 


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module and variable names made 

consistent throughout the module. Data 

transfer between the routines was 

streamlined by the use of Include 

statements for COMMON block 

variables. 

(8) All nuclide-specific data are now 

stored in eXtensible Markup Language 

(XML) format. 

(9) All significant floating-point 

calculations have been moved to the 

FORTRAN routines, greatly speeding up 

the code. 

(10) The code uses the Intel 

FORTRAN Composer XE 11 compiler 

that permits many of the calculations to 

be vectorized and multi-threaded to take 

advantage of these capabilities in 

modern desktop processors. 

(11) The bit-length of variables has 

been doubled, allowing much greater 

computational ranges for cases with 

large or small release rates. 

User Interface 

(1) A traditional document-style 

interface has been designed, similar to 

major applications with which users are 

already familiar. Users can more easily 

open, edit and save datasets, population 

and wind files using Windows menus 

and familiar icons on the application 

bar. 

(2) Dataset reports are now displayed 

in, and generated from a Reports tab 

when the dataset is opened. The code is 

now executed using the Report 

generation button rather than a ‘‘Save 

and Close’’ button. The reports to be 

generated and viewed are selectable 

from the Reports tab. The ‘‘Save and 

Close’’ button from Version 3 has been 

removed. 

(3) Multiple files (datasets, population 

files, wind files) can be open at once. 

(4) When editing files, changes and 

errors are displayed in real time. 

(5) Editing of nuclides is clearer and 

easier. In-grid editing is allowed, but 

note that fields are not recorded until 

the user clicks away from the field being 

edited. A Save performed without first 

clicking away from a field being edited 

will result in that field’s data not being 

saved. 

(6) The application recognizes when a 

user is opening a Version 3 file, and 

launches the migration utility, offering 

to create a Version 4 copy of the file. 

(7) The general layout, look, and feel 

of the user interface are similar to that 

in earlier versions of CAP88–PC in order 

to ease transition to CAP88–PC Version 

4. 

File Formats 

The dataset file format has changed in 

Version 4 from Version 3 to 

accommodate the new requirements. 

The new dataset file format is 

documented both in the Version 4 

User’s Manual and the on-line help 

files. 

(1) Population and Wind files 

previously had extended values such as 

State and Census stored in a Microsoft 

Access database. When migrating from 

Version 3, this data—if available—is 

stored in the file itself. Doing so 

removed the need for an external 

database, and allowed users to send 

their custom population/wind files with 

the extended values intact. These 

changes have been documented in the 

file format description in the Version 4 

User’s Manual and the on-line help 

files. 

(2) Version 3 population and wind 

files can still be used in Version 4 

datasets. Extended values are only 

added to the pop/wind files if they are 

edited to add them. 

(3) The use of additional applications, 

such as Microsoft Access, to manage 

data has been eliminated in CAP88–PC 

Version 4. Radionuclide, agricultural, 

and other data previously held in the 

Microsoft Access database are now in a 

more portable and more easily 

accessible XML database. 

Error Handling 

CAP88–PC Version 4 contains an 

enhanced internal error logging and 

tracking system. In the case of internal 

code errors, the code will write errors to 

a file in the Message Log folder located 

in the same folder set as the folder 

containing the datasets. Sending this file 

to the EPA representative will facilitate 

troubleshooting. 

On-Line Help System 

CAP88–PC Version 4 includes a 

context-sensitive help system that is 

accessible during operation. The on-line 

help system is a hypertext version of the 

traditional user manual; the traditional 

user manual is included as part of the 

release distribution package in pdf 

format. 

Dated: January 23, 2015. 

Jonathan D. Edwards, 

Director, Radiation Protection Division, Office 

of Radiation and Indoor Air. 

[FR Doc. 2015–02704 Filed 2–9–15; 8:45 am] 

BILLING CODE 6560–50–P 

FARM CREDIT ADMINISTRATION 

Farm Credit Administration Board; 

Sunshine Act; Regular Meeting 

AGENCY: Farm Credit Administration. 

SUMMARY: Notice is hereby given, 

pursuant to the Government in the 

Sunshine Act, of the regular meeting of 

the Farm Credit Administration Board 

(Board). 

DATE AND TIME: The regular meeting of 

the Board will be held at the offices of 

the Farm Credit Administration in 

McLean, Virginia, on February 12, 2015, 

from 9:00 a.m. until such time as the 

Board concludes its business. 

FOR FURTHER INFORMATION CONTACT: Dale 

L. Aultman, Secretary to the Farm 

Credit Administration Board, (703) 883– 

4009, TTY (703) 883–4056. 

ADDRESSES: Farm Credit 

Administration, 1501 Farm Credit Drive, 

McLean, Virginia 22102–5090. Submit 

attendance requests via email to 

VisitorRequest@FCA.gov. See 

SUPPLEMENTARY INFORMATION for further 

information about attendance requests. 

SUPPLEMENTARY INFORMATION: Parts of 

this meeting of the Board will be open 

to the public (limited space available), 

and parts will be closed to the public. 

Please send an email to VisitorRequest@

FCA.gov at least 24 hours before the 

meeting. In your email include: name, 

postal address, entity you are 

representing (if applicable), and 

telephone number. You will receive an 

email confirmation from us. Please be 

prepared to show a photo identification 

when you arrive. If you need assistance 

for accessibility reasons, or if you have 

any questions, contact Dale L. Aultman, 

Secretary to the Farm Credit 

Administration Board, at (703) 883– 

4009. The matters to be considered at 

the meeting are: 

Open Session 

A. Approval of Minutes 

• January 8, 2015 

B. New Business 

• Farmer Mac Board Governance and 

Standards of Conduct—Proposed Rule 

• Spring 2015 Abstract of the Unified 

Agenda of Federal Regulatory and 

Deregulatory Actions and Spring 2015 

Regulatory Projects Plan 

Closed Session * 

Reports 

• Office of Secondary Market Oversight 

Quarterly Report 

Dated: February 5, 2015. 

Dale L. Aultman, 

Secretary, Farm Credit Administration Board. 

* Session Closed—Exempt pursuant to 

5 U.S.C. Section 552b(c)(8) and (9). 

[FR Doc. 2015–02778 Filed 2–6–15; 11:15 am] 

BILLING CODE 6705–01–P 


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