國際商會“UCP 500”規(guī)定，該慣例也適用于備用信用征 （Standby L／C）。
備用信用證的定義和前述信用證的定義并無不同，都是銀行（開證行）應(yīng)申請人的請求，向受益人開立的，在一定條件下憑規(guī)定的單據(jù)向受益人支付一定款項的書面憑證。所不同的是，規(guī)定的單據(jù)不同。備用信用證要求受益人提交的單據(jù)，不是貨運單據(jù)，而是受益人出具的關(guān)于申請人違約的聲明或證明。
傳統(tǒng)的銀行保函有可能使銀行卷入商業(yè)糾紛，美、日等國的法律禁止銀行開立保函。于是美國銀行采用備用信用證的形式，對國際經(jīng)濟交易行為提供擔(dān)保。隨著銀行保函在應(yīng)用中性質(zhì)的變化，特別是1992年國際商會《見索即付保函統(tǒng)一規(guī)則》的公布，銀行保函和備用信用證的內(nèi)容和作用已趨一致。所不同的只是兩者遵循的慣例不同。備用信用證運用于“UCP 500”，而銀行保函則適用于上述《規(guī)則》。
備用信用證是擔(dān)保銀行向貼現(xiàn)或貸款銀行承諾到期為借款方償還債務(wù)，如果借款方到期償還了貸款，那么，備用信用證就備而不用，如果，借款方到期不歸還貸款，那么，備用信用證就起作用，擔(dān)保銀行就要為借款方向貸款銀行償還貸款。備用信用證有無條件兌付信用證和有條件兌付信用證。
備用信用證本：
To: Bank of communications, SHENYING Branch
From: XYZ BANK
Date: 20 DECEMBER 2004
Standby Letter of Credit
With reference to the loan agreement no. 2004HN028 (hereinafter referred to as "the agreement" ) signed between Bank of Communications, SHENYANG Branch (hereinafter referred to as "the lender" ) and LIAONING ABC CO., LTD (hereinafter referred to as "the borrower" )for a principal amount of RMB2,000,000 (in words),we hereby issue our irrevocable standby letter of credit no.810LC040000027D in the lender's favor for amount of the HONGKONG AABBCC CORPORATION which has its registered office at AS 8 FL. 2SEC. CHARACTER RD. HONG KONG for an amount up to UNITED STATES DOLLARS THREE MILLION ONLY.(USD3,000,000) which covers the principal amount of the agreement plus interest accrued from aforesaid principal amount and other charges all of which the borrower has undertaken to pay the lender. The exchange rate will be the buying rate of USD/RMB quoted by Bank of Communications on the date of our payment. In the case that the guaranteed amount is not sufficient to satisfy your claim due to the exchange rate fluctuation between USD and RMB we hereby agree to increase the amount of this standby L/C accordingly.
Partial drawing and multiple drawing are allowed under this standby L/C.
This standby letter of credit is available by sight payment. We engage with you that upon receipt of your draft(s) and your signed statement or tested telex statement or SWIFT stating that the amount in USD represents the unpaid balance of indebtedness due to you by the borrower, we will pay you within 7 banking days the amount specified in your statement or SWIFT. All drafts drawn hereunder must be marked drawn under XYZ Bank standby letter of credit no. 810LC040000027D dated 20 DECEMBER 2004.
This standby letter of is credit will come into effect on 20 DECEMBER 2004 and expire on 09 DECEMBER 2005 at the counter of bank of Communications , SHENYANG branch.
This standby letter of credit is subject to Uniform Customs and Practice for Document Credits(1993 revision) International Chamber of Commerce Publication No.500.
備用信用證的定義和前述信用證的定義并無不同，都是銀行（開證行）應(yīng)申請人的請求，向受益人開立的，在一定條件下憑規(guī)定的單據(jù)向受益人支付一定款項的書面憑證。所不同的是，規(guī)定的單據(jù)不同。備用信用證要求受益人提交的單據(jù)，不是貨運單據(jù)，而是受益人出具的關(guān)于申請人違約的聲明或證明。
傳統(tǒng)的銀行保函有可能使銀行卷入商業(yè)糾紛，美、日等國的法律禁止銀行開立保函。于是美國銀行采用備用信用證的形式，對國際經(jīng)濟交易行為提供擔(dān)保。隨著銀行保函在應(yīng)用中性質(zhì)的變化，特別是1992年國際商會《見索即付保函統(tǒng)一規(guī)則》的公布，銀行保函和備用信用證的內(nèi)容和作用已趨一致。所不同的只是兩者遵循的慣例不同。備用信用證運用于“UCP 500”，而銀行保函則適用于上述《規(guī)則》。
備用信用證是擔(dān)保銀行向貼現(xiàn)或貸款銀行承諾到期為借款方償還債務(wù)，如果借款方到期償還了貸款，那么，備用信用證就備而不用，如果，借款方到期不歸還貸款，那么，備用信用證就起作用，擔(dān)保銀行就要為借款方向貸款銀行償還貸款。備用信用證有無條件兌付信用證和有條件兌付信用證。
備用信用證本：
To: Bank of communications, SHENYING Branch
From: XYZ BANK
Date: 20 DECEMBER 2004
Standby Letter of Credit
With reference to the loan agreement no. 2004HN028 (hereinafter referred to as "the agreement" ) signed between Bank of Communications, SHENYANG Branch (hereinafter referred to as "the lender" ) and LIAONING ABC CO., LTD (hereinafter referred to as "the borrower" )for a principal amount of RMB2,000,000 (in words),we hereby issue our irrevocable standby letter of credit no.810LC040000027D in the lender's favor for amount of the HONGKONG AABBCC CORPORATION which has its registered office at AS 8 FL. 2SEC. CHARACTER RD. HONG KONG for an amount up to UNITED STATES DOLLARS THREE MILLION ONLY.(USD3,000,000) which covers the principal amount of the agreement plus interest accrued from aforesaid principal amount and other charges all of which the borrower has undertaken to pay the lender. The exchange rate will be the buying rate of USD/RMB quoted by Bank of Communications on the date of our payment. In the case that the guaranteed amount is not sufficient to satisfy your claim due to the exchange rate fluctuation between USD and RMB we hereby agree to increase the amount of this standby L/C accordingly.
Partial drawing and multiple drawing are allowed under this standby L/C.
This standby letter of credit is available by sight payment. We engage with you that upon receipt of your draft(s) and your signed statement or tested telex statement or SWIFT stating that the amount in USD represents the unpaid balance of indebtedness due to you by the borrower, we will pay you within 7 banking days the amount specified in your statement or SWIFT. All drafts drawn hereunder must be marked drawn under XYZ Bank standby letter of credit no. 810LC040000027D dated 20 DECEMBER 2004.
This standby letter of is credit will come into effect on 20 DECEMBER 2004 and expire on 09 DECEMBER 2005 at the counter of bank of Communications , SHENYANG branch.
This standby letter of credit is subject to Uniform Customs and Practice for Document Credits(1993 revision) International Chamber of Commerce Publication No.500.