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深圳市壹兴佰测量设备有限公司
深圳市龙岗区横岗横坪公路83号
国内部分经销商电话：
昂贵的进口新机床、高级技师操作都难以达到的加工精度！如今即使是国产旧机床，在对工人稍加培训学会使用机床测量头之后，就能轻松达到令人难以置信的加工精度！同时在选配了机床测量头之后，还可以大幅缩短调机时间，降低加工精度管控的操作难度，显著提高工作效率，帮助机加工制造行业应对高级技师难招、生产利润微薄、经营形势日益艰难的困境，增强企业的高附加值定单接单能力。
机床测头操作视频列表
& & & & & & & & & & & &德国ACCU爱克公司免费上门服务预约函
2014惊喜送大礼！机床测量头在线测量技术免费上门咨询讲座。机床测头配套有11款软件程序，欧美发达国家已经普及，非常方便实用。但是德国ACCU爱克公司的调查结果， 99%中国企业的CNC数控加工技术人员没有亲自用过，根本就不会使用。
为了兼顾销售服务商的利益，不显示制造商信息，销售服务事宜由销售商代理
咨询调查一览表：
【机床在线测量头自动对刀的好处】
1、红宝石测球接触刀具面小，不会损伤刀具及工件； & & &&5、用测量头对刀可延长刀具使用寿命；
2、测量方法与三坐标测量机相同，触发式接触，数据精准； 6、断刀自动停机报警，避免了不必要的断刀损失；
3、测量头性能稳定、精度高、测量数据可靠； & & & & & & 7、对刀软件自动补偿刀具磨损误差，提高效率及品质；
4、测量头耐用寿命长，比进口对刀仪成本低；&
凡是没有亲眼所见或没有用过1&仪的业内人士，很容易会有以下想法：
1、提高工作效率唯一的方法：添置新机、& 进口高速机。传统的操作工艺习惯形成了一种惯性的思维方式。小小1&仪充分挖掘了数控机床的巨大潜能，新的工艺流程会使机床变得高效、快捷，增加产能。
2、控制产品的质量唯一的方法：招高级师傅、加强巡检、添置检测设备。小小1&仪大大降低了操机的难度，新员工稍加培训即 能上岗，新工艺规范了操作标准、巡检变为了自检、在线检测方便、及时，产品质量得到了有效控制，品质&有了保障。
3、国产优质品牌新机，最好精度也只能达&到10&&&20&，&有20&左右返程间隙，&1&仪依赖机床的自身精度使用无实际意义。&&现场实操所见国产机床普遍都有5&以内精度，1&仪能将机床返程间隙补偿到1&不差。只要是机床硬件没有问题，使用1&仪可调整恢复机床的精度，1 &仪&&配合精度补偿软件一同使用，确保加工精度5&以内，国产新机床加工精度达到&2&。
【数控机床标配3D在线测量头的好处 】&
1、提高调机速度，减少机床的辅助时间；
2、提高机床加工精度，代替第一把刀确定Z轴基准；
3、首件一次成功，巡检在机抽验；避免废品减少浪费；
4、操作简单易学，新手稍加培训速成操机熟手；
5、机床自动化程度普遍提升，测量结果标准统一；
6、精度补偿软件确保加工精度，测量的同时自动完成修正补偿；
【防护等级】防水防油，防护等级可达IP67
&产品名称：机床测头AC90
&产品简介：
媒体价格：(单位：RMB)
&产品名称：机床测头AC100
&产品简介：
媒体价格：(单位：RMB)
&产品名称：1μ棒
&产品简介：
媒体价格：(单位：RMB)
&产品名称：全自动双立柱高精度龙门式三坐标测量机
&产品简介：
全自动双立柱高精度龙门式三坐标测量机，高精度机，该款测量机是中型测量机，X方向行程小
YXB122010YXB152010YXB152012YXB152015YXB12&&.
媒体价格：B0265452(单位：RMB)
&产品名称：全自动桥式三坐标测量机
&产品简介：
产品简介：全自动桥式三坐标测量机，该款测量机是中小型测量机，X方向行程小于1500mm,主要型号：YXB575、
YXB564、YXB684、YXB8106等等。 主要配置：英国RENISHAW公司的三坐标专..
媒体价格：A0123562(单位：RMB)
&产品名称：全自动双高架龙门式三坐标测量机
&产品简介：
、YXB307020、YXB308020等等。
媒体价格：B0265452(单位：RMB)
版权所有 Copyright(C)2011 深圳市壹兴佰测量设备有限公司
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2007 Microsoft Office 套件 Service Pack 3 (SP3)此 Service Pack 3 会提&#2 Microsoft Office 套件的最新更新。另外，此更新同样适用于 Microsoft Office Project、Microsoft Office SharePoint Designer、Microsoft Office Visio 和 Visual Web Developer。Size: 352.4 MB
Internet Explorer for Windows XP 安全更新程序 (KB2618444)此更新解决了 Microsoft Security Bulletin MS11-099 中讨论的漏洞。要了解为您提供的其他安全更新，请参见本页的概述部分。Size: 3.8 MB
Microsoft® Windows® 恶意软件删除工具 (KB890830)此工具可以检查您的计算机是否受到特殊流行恶意软件（包括 Blaster、Sasser 和 Mydoom）的感染，并在找到感染时帮助将其删除。 Microsoft 在每月第二个星期二发布此工具的更新版本。Size: 35.3 MB
下载列表：KBMBGBYou have not selected any file(s) to download.Microsoft 建议您安装下载管理器。建议在下载多个文件时使用下载管理器，Microsoft Download ManagerManage all your internet downloads with this easy-to-use manager.It features a simple interface with many customizable options:Download multiple files at one timeDownload large files quickly and reliablySuspend active downloads and resume downloads that have failed是否要安装 Microsoft Download Manager？Yes, install Microsoft Download Manager(recommended)不，谢谢
Microsoft .NET Framework 3.5 对 .NET Framework 2.0 和 3.0 中的许多新功能进行了更新和增补，且附带了 .NET Framework 2.0 Service Pack 1 和 .NET Framework 3.0 Service Pack 1。
3.5dotNetFx35setup.exe2.7 MB
.NET Framework 3.0 中增加了不少新功能，例如 Windows Workflow Foundation (WF)、Windows Communication Foundation (WCF)、Windows Presentation Foundation (WPF) 和 Windows CardSpace，.NET Framework 3.5 在这些新增功能的基础上增量构建而成。此外，.NET Framework 3.5 还包含若干技术领域中的大量新功能，它们以新程序集的形式添加，以避免重大更改。这些新功能包括：与语言集成查询 (LINQ) 和数据感知紧密集成。借助这个新功能，您可以使用相同的语法，在任何支持 LINQ 的语言中编写相关代码，以筛选和枚举多种类型的 SQL 数据、集合、XML 和数据集，以及创建它们的投影。利用 ASP.NET AJAX 可以创建更有效、更具交互性、高度个性化的 Web 体验，这些体验在所有最流行的浏览器上都能实现。用于生成 WCF 服务的全新 Web 协议支持，包括 AJAX、JSON、REST、POX、RSS、ATOM 和若干新的 WS-* 标准。Visual Studio 2008 中面向 WF、WCF 和 WPF 的完整工具支持，其中包括支持工作流的服务这一新技术。.NET Framework 3.5 基类库 (BCL) 中的新类可满足许多常见的客户请求。重要事项： 如果安装有 .NET Framework 3.5 的早期预发行版本，则运行此安装之前，必须使用“添加/删除程序”卸载那些预发行版本。有关 Framework 此发行版的详细信息，请参见：
支持的操作系统
Windows Server 2003, Windows Server 2008, Windows Vista, Windows XP
处理器：400 MHz Pentium 处理器或与之相当的处理器（最低配置）；1GHz Pentium 处理器或与之相当的处理器（建议配置）内存：96 MB（最低配置）；256 MB（建议配置）硬盘：最多可能需要 500 MB 的可用空间CD 或 DVD 驱动器：不需要显示器：800 x 600，256 色（最低配置）；1024 x 768 增强色，32 位（建议配置）
重要事项：请确保已为您计算机上的 Windows 安装了最新的 Service Pack 和重要更新。若要查找最近的更新，请访问 Windows Update。单击此页面上的“下载”按钮开始下载。若要将下载文件保存到计算机上，以后再执行安装，请单击“保存”。若要取消安装，请单击“取消”。----------------------------------------------完整的可再发行组件包若要下载完整的可再发行组件包，而不是引导程序，请单击以下链接开始下载：
Microsoft Visual C++ 2005 Redistributable Package (x86) 安装在未安装 Visual C++ 2005 的计算机上运行使用 Visual C++ 开发的应用程序所需的 Visual C++ 库的运行时组件。
Microsoft Visual C++ 2005 SP1 Redistributable Package (x86) 安装在未安装 Visual C++ 2005 的计算机上运行使用 Visual C++ 开发的应用程序所需的 Visual C++ 库的运行时组件。
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现已确认 Microsoft XML Core Services (MSXML) 中有一个安全问题，攻击者可能会利用此问题危及 Windows 系统的安全并获取对该系统的控制权。
安装此更新可以解决 Microsoft .NET Framework 3.5 Service Pack 1 的一系列已知应用程序兼容性问题。
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软件更新Service packs硬件驱动程序创建出色应用所需的一切，应有尽有。From Wikipedia, the free encyclopedia
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has original text related to this article:
A 501(c) organization, also known colloquially as a 501(c), is a
in the . Section 501(c) of the United States
( ) provides that 29 types of nonprofit organizations are exempt from some
. Sections 503 through 505 set out the requirements for attaining such exemptions. Many states refer to Section 501(c) for definitions of organizations exempt from state taxation as well. 501(c) organizations can receive unlimited contributions from individuals, corporations, and unions.
The most common type of tax-exempt nonprofit organization falls under category 501(c)(3), whereby a nonprofit organization is exempt from federal income tax if its activities have the following purposes: charitable, religious, educational, scientific, literary, testing for public safety, fostering amateur sports competition, or preventing cruelty to children or animals. The 501(c)(4) and 501(c)(6) categories are for politically active nonprofit organizations, which have become increasingly important since the 2004 federal elections.
According to the IRS Publication 557+, in the Organization Reference Chart section, the following is an exact list of 501(c) organization types and their corresponding descriptions.
501(c)(1) — Corporations Organized Under Act of Congress (including )
501(c)(2) — Title Holding Corporation for Exempt Organization
— Religious, Educational, Charitable, Scientific, Literary, Testing for Public Safety, to Foster National or International Amateur Sports Competition, or Prevention of Cruelty to Children or Animals Organizations
— Civic Leagues, Social Welfare Organizations, and Local Associations of Employees
— Labor, Agricultural and Horticultural Organizations
— Business Leagues, Chambers of Commerce, Real Estate Boards, etc.
501(c)(7) — Social and Recreational Clubs
501(c)(8) —
501(c)(9) —
501(c)(10) — Domestic Fraternal Societies and Associations
501(c)(11) — Teachers' Retirement Fund Associations
501(c)(12) — Benevolent Life Insurance Associations, Mutual Ditch or Irrigation Companies, Mutual or , etc.
501(c)(13) —
501(c)(14) — State-Chartered , Mutual Reserve Funds
501(c)(15) —
Companies or Associations
501(c)(16) — Cooperative Organizations to Finance Crop Operations
501(c)(17) — Supplemental Unemployment Benefit Trusts
501(c)(18) — Employee Funded Pension Trust (created before June 25, 1959)
501(c)(19) — Post or Organization of Past or Present Members of the
501(c)(20) — Group Legal Services Plan Organizations
501(c)(21) —
Benefit Trusts
501(c)(22) — Withdrawal Liability Payment Fund
501(c)(23) — Veterans Organization (created before 1880)
501(c)(24) — Section 4049
501(c)(25) — Title Holding Corporations or Trusts with Multiple Parents
501(c)(26) — State-Sponsored Organization Providing Health Coverage for High-Risk Individuals
501(c)(27) — State-Sponsored Workers' Compensation
Organization
501(c)(28) — National Railroad Retirement Investment Trust
501(c)(29) — Qualified Nonprofit Health Insurance Issuers (Created in section 1322(h)(1) of the )
+ 501(c)(20) and 501(c)(24) organization types receive little mention in IRS Publication 557 and are not included in its Organization Reference Chart. 501(c)(20) organizations are no longer tax-exempt under Section 501(c)(20) after June 30, 1992, but they may request to become exempt under Section 501(c)(9) effective July 1, 1992. 501(c)(24) organizations are described as Section 4049 ERISA T Section 4049 of
has been repealed.
Certain day care centers may qualify as tax-exempt under Section 501(k). The day care center must provide child care away from their homes. At least 85 percent of the children served must be cared for while their parent or guardian is either employed, seeking employment, or a full-time student. Most of the day care center's funding must come from fees received for day care services. The day care center must also provide child care services to the general public. The tax exemption for certain day care centers was part of the .
Under Section 511, a 501(c) organization is subject to tax on its "", whether or not the organization actually makes a profit, but not including selling donated merchandise or other business or trade carried on by volunteers, or certain bingo games. Disposal of donated goods valued over $2,500, or acceptance of goods worth over $5,000 may also trigger special filing and record-keeping requirements.
Tax exemption does not excuse an organization from maintaining proper records and filing any required annual or special-purpose , e.g.,   and  . Prior to 2008, an annual return was not generally required from an exempt organization accruing less than $25,000 in gross income yearly. Since 2008, many such organizations must file a yearly "e-Postcard" known as Form 990-N, or risk losing their exemption, with the maximum accrual being $50,000 to file a 990-N. Form 990-N must be submitted electronically using an authorized
provider. Other types of Form 990 may be submitted via mail and some are available electronically through an IRS e-file provider.
Failure to file required returns such as Form 990 (Return of Organization Exempt From Income Tax) may result in fines of up to $250,000 per year. Exempt or political organizations, excluding churches or similar religious entities, must make their returns, reports, notices, and exempt applications available for public inspection. The organization's Form 990 (or similar such public record as the Form 990-EZ or Form 990-PF) is available for public inspection and photocopying at the offices of the exempt organization, through a written request and payment for photocopies by mail from the exempt organization, or through a direct Form 4506-A 'Request for Public Inspection or Copy or Political Organization IRS Form' request to the IRS of for the past three tax years. Form 4506-A also allows the public inspection and/or photocopying access to Form 1023 'Application for Recognition of Exemption' or Form 1024, Form 8871 'Political Organization Notice of Section 527 Status', and Form 8872 'Political Organization Report of Contribution and Expenditures'. Internet access to an organization's 990 and some other forms are available through information services such as .
Failure to file such timely returns and to make other specific information available to the public also is prohibited.
501(c)(3) exemptions apply to corporations, and any , fund,
or foundation, organized and operated exclusively for , , , testing for public safety, , or
purposes, to foster national or international
competition, or for the prevention of cruelty to children or . There are also supporting organizations—often referred to in shorthand form as "Friends of" organizations.
Another provision,  , provides a deduction, for federal income tax purposes, for some donors who make
to most types of 501(c)(3) organizations, among others. Regulations specify which such deductions must be verifiable to be allowed (e.g., receipts for donations over $250). Due to the tax deductions associated with donations, loss of 501(c)(3) status can be highly challenging to a charity's continued operation, as many foundations and corporate matching programs do not grant funds to a charity without such status, and individual donors often do not donate to such a charity due to the unavailability of the deduction.
Testing for public safety is described under section 509(a)(4) of the code, which makes the organization a public charity and not a private foundation, but contributions to 509(a)(4) organizations are not deductible by the donor for federal income, estate, or gift tax purposes.
The two exempt classifications of 501(c)(3) organizations are as follows:
A , identified by the
(IRS) as "not a private foundation", normally receives a substantial part of its income, directly or indirectly, from the general public or from the government. The public support must be fairly broad, not limited to a few individuals or families. Public charities are defined in the Internal Revenue Code under sections 509(a)(1) through 509(a)(4).
A , sometimes called a non-operating foundation, receives most of its income from investments and endowments. This income is used to make grants to other organizations, rather than being disbursed directly for charitable activities. Private foundations are defined in the Internal Revenue Code under section 509(a) as 501(c)(3) organizations, which do not qualify as public charities.
Churches must meet specific requirements in order to obtain and mainta these are outlined in IRS Publication 1828: Tax guide for churches and religious organizations. This guide outlines activities allowed and not allowed by churches under the 501(c)(3) designation. A private, nonprofit organization, , also provides information on 501(c)(3) organizations.[]
Before donating to a 501(c)(3) organization, a donor may wish to consult the searchable online IRS list of charitable organizations as well as lists that may be maintained by a state on a portion of its web portal devoted to its "department of justice" or "office of attorney general".
Consumers may file IRS Form 13909 with documentation to complain about inappropriate or fraudulent (i.e., fundraising, political campaigning, lobbying) activities by any 501(c)(3) tax-exempt organization.
The basic requirement of obtaining tax exempt status is that the organization is specifically limited in powers to purposes that the IRS classifies as tax exempt purposes. Unlike for-profit corporations that benefit from broad and general purposes, non profit organizations need to be limited in powers to function with tax exempt status, but a non profit corporation is by default not limited in powers until it specifically limits itself in the articles of incorporation and/or nonprofit corporate bylaws. This limiting of the powers is crucial to obtaining tax exempt status with the IRS and then on the state level. Organizations acquire 501(c)(3) tax exemption by filing IRS . As of 2006 the form must be accompanied by a $850 filing fee if the yearly gross receipts for the organization are expected to average $10,000 or more. If yearly gross receipts are expected to average less than $10,000, the filing fee is reduced to $400. There are some classes of organizations that automatically are treated as tax exempt under 501(c)(3), without the need to file Form 1023:
Churches, their integrated auxiliaries, and conventions or associations of churches
Organizations that are not private foundations and that have gross receipts that normally are not more than $5,000
The IRS also expects to release a software tool called Cyber Assistant, which assists with preparation of the application for tax exemption, but as of late 2011 the release date is unclear.
There is an alternative way for an organization to obtain status if an organization has applied for a determination and either there is an actual controversy regarding a determination or the Internal Revenue Service has failed to make a determination. In these cases, the , the , and the
have concurrent jurisdiction to issue a declaratory judgment of the organization's qualification if the organization has exhausted administrative remedies with the Internal Revenue Service.
Section 501(c)(3) organizations are prohibited from supporting political candidates, and are subject to limits on . They risk loss of tax exempt status if these rules are violated. An organization that loses its 501(c)(3) status due to being engaged in political activities cannot then qualify for 501(c)(4) status.
Organizations described in section 501(c)(3) are prohibited from conducting
activities to intervene in
to public office. The Internal Revenue Service website[] elaborates upon this prohibition as follows:
Under the Internal Revenue Code, all section 501(c)(3) organizations are absolutely prohibited from directly or indirectly participating in, or intervening in, any political campaign on behalf of (or in opposition to) any candidate for elective public office. Contributions to political campaign funds or public statements of position (verbal or written) made on behalf of the organization in favor of or in opposition to any candidate for public office clearly violate the prohibition against political campaign activity. Violating this prohibition may result in denial or revocation of tax-exempt status and the imposition of certain excise taxes.
Certain activities or expenditures may not be prohibited depending on the facts and circumstances. For example, certain voter education activities (including presenting public forums and publishing voter education guides) conducted in a non-partisan manner do not constitute prohibited political campaign activity. In addition, other activities intended to encourage people to participate in the electoral process, such as voter registration and get-out-the-vote drives, would not be prohibited political campaign activity if conducted in a non-partisan manner.
On the other hand, voter education or registration activities constitute prohibited participation or intervention if there is evidence of bias that would:
Favor one candidate over another
Oppose a candidate in some manner
Have the effect of favoring a candidate or group of candidates
The Internal Revenue Service provides resources to exempt organizations and the public to help them understand the prohibition. As part of its examination program, the IRS also monitors whether organizations are complying with the prohibition.
In contrast to the prohibition on political campaign interventions by all section 501(c)(3) organizations, public charities (but not private foundations) may conduct a limited amount of
to influence legislation. Although the law states that "No substantial part..." of a public charity's activities can go to lobbying, charities with large budgets may lawfully expend a million dollars (under the "expenditure" test), or more (under the "substantial part" test) per year on lobbying. To clarify the standard of the "substantial part" test, Congress enacted §501 (h) (called the Conable election after its author, Representative ). The section establishes limits based on operating budget that a charity can use to determine if it meets the substantial test. This changes the prohibition against direct intervention in partisan contests only for lobbying. The organization is now presumed in compliance with the substantiality test if they work within the limits. The Conable Election requires a charity to file a declaration with the IRS and file a functional distribution of funds spreadsheet with their Form 990. IRS form 5768 is required to make the Conable election.
The origins of 501(c)(4) organizations date back to the , which created a new group of tax-exempt organizations dedicated to social welfare in a precursor to what is now Internal Revenue Code Section 501(c)(4).
501(c)(4) organizations are generally civic leagues and other corporations operated exclusively for the promotion of "social welfare", such as civics and civics issues, or local associations of employees with membership limited to a designated company or people in a particular municipality or neighborhood, and with net earnings devoted exclusively to charitable, educational, or recreational purposes. An organization is considered by the IRS to be operated exclusively for the promotion of social welfare if it is primarily engaged in promoting the common good and general welfare of the people of the community.
501(c)(4) organizations may inform the public on controversial subjects and attempt to influence legislation relevant to its program and, unlike 501(c)(3) organizations, they may also participate in political campaigns and elections, as long as their primary activity is the promotion of social welfare. The tax exemption for 501(c)(4) organizations applies to most of their operations, but contributions may be subject to gift tax, and income spent on political activities – generally the advocacy of a particular candidate in an election – is taxable. An "action" organization generally qualifies as a 501(c)(4) organization. An "action" organization is one whose activities substantially include, or are exclusively, direct lobbying or grass roots lobbying related to advocacy for or against legislation or proposing, supporting, or opposing legislation that is related to its purpose. A 501(c)(4) organization may directly or indirectly support or oppose a candidate for public office as long as such activities are not a substantial amount of its activities.
Contributions to 501(c)(4) organizations are usually not deductible as charitable contributions for U.S. federal income tax, with a few exceptions. Dues or contributions to 501(c)(4) organizations may be deductible as a business expense under IRC 162, although amounts paid for intervention or participation in any political campaign, direct lobbying, grass roots lobbying, and contact with certain federal officials are not deductible. If a 501(c)(4) engages in a substantial amount of these activities, then only the amount of dues or contributions that can be attributed to other activities may be deductible as a business expense. The organization has to provide a notice to its members containing a reasonable estimate of the amount related to lobbying and political campaign expenditures, or else it is subject to a proxy tax on its lobbying and political campaign expenditures. It must also state that contributions to the organization are not deductible as charitable contributions during fundraising.
501(c)(4) organizations are not required to disclose their donors publicly. The lack of disclosure has led to extensive use of the 501(c)(4) provisions for organizations that are actively involved in lobbying, and has become controversial. Criticized as "", spending from these organizations on political TV ads has exceeded spending from . Spending by organizations that do not disclose their donors has increased from less than $5.2 million in 2006 to well over $300 million in the 2012 election.
The use of 501(c)4's has been affected by the 2010 , in which the Supreme Court struck the part of the
that prohibited for-profit corporations, non-profit corporations, and unions from broadcasting electioneering communications. The Act defined an electioneering communication as a communication, that mentions a candidate's name sixty days before a primary or thirty days before a general election. Through 501(c)4 organizations electioneering communications can since be aired at any time.
501(c)(5) organizations include labor, agricultural and horticultural organizations. Labor unions, county fairs and flower societies are examples of these types of groups. Labor union organizations were a primary benefactor of th dating to the 1800s. IRS, from a federal level, stipulates a federal requirement and duty of providing service to the members first. They have other requirements such as a requirement that benefits may not inure to a specific member but the rules for inurement vary among the three different types of organizations under this segment. They can make unlimited corporate, individual, or union contributions
501(c)(6) provides for exemption of business leagues, chambers of commerce like the , the real estate boards, boards of trade, professional football leagues such as the
(whether or not administering a pension fund for football players), and organizations like the
and the , which are not organized for profit and no part of the net earnings goes to the benefit of any private shareholder or individual.
The predecessor of IRC 501(c)(6) was enacted as part of the
likely due to a US Chamber of Commerce request for an exemption for nonprofit "civic" and "commercial" organizations, which resulted in IRC 501(c)(4) for nonprofit "civic" organizations and IRC 501(c)(6) for nonprofit "commercially-oriented" organizations. The
amended the statue to include real estate boards. Rev. Act of 1928, ch. 852, § 103(7), 48 Stat. 700. In 1966, professional football leagues were added to the described organizations. Act of Nov. 8, 1966, Pub. L. 89- 800, § 6(a), 80 Stat. 1515. The Act related to professional football leagues had both antitrust and tax provisions: The antitrust provision was enacted to permit the merger of the National and American Football Leagues to go forward without fear of an antitrust challenge under either the 1914
or the 1914 . IRC 501(c)(6) amendment was enacted in 1966 to ensure that a professional football league's exemption would not be jeopardized because it administered a players' pension fund. (H.R. Conf. Rept. No 2308, 89th Cong., 2d Sess. (1966), reprinted in 1966-2 C.B. 958, 963, 964.)
Much like 501(c)(4) groups, there has been some movement[] toward using 501(c)(6) groups for political purposes. They can receive unlimited corporate, individual, or union contributions. The U.S. Chamber of Commerce is a large spender on politics, and
used 501(c)(6) status to raise and distribute over $250 million to groups during 2012 election campaigns without disclosing its donors. The group's existence was not publicly known until nearly a year after the election.
offers information on more than 50,000 501(c)(3) public charities and private foundations.
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